|**Fair Values of Assets and Liabilities (Measured on Recurring Basis) (Details) (USD $)In Thousands, unless otherwise specified** | Mar. 31, 2014                                          | Dec. 31, 2013                                         
|--------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------ | ------------------------------------------------------
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | $ 402,468                                              | $ 414,614                                             
|U.S. government sponsored agencies debt securities [Member]                                                                       |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 2,070                                                  | 2,077                                                 
|Residential mortgage-backed securities - GSE [Member]                                                                             |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 337,564                                                | 341,147                                               
|Residential mortgage-backed securities - Private [Member]                                                                         |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 20,282                                                 | 20,752                                                
|Commercial mortgage-backed securities - GSE [Member]                                                                              |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 21,590                                                 | 21,439                                                
|Commercial mortgage-backed securities - Private [Member]                                                                          |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 9,844                                                  | 9,585                                                 
|Business Development Company investment [Member]                                                                                  |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 2,651                                                  | 2,737                                                 
|Corporate notes [Member]                                                                                                          |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 8,467                                                  | 16,877                                                
|Level 1 [Member]                                                                                                                  |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 2,651                                                  | 2,737                                                 
|Level 2 [Member]                                                                                                                  |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 399,817                                                | 411,877                                               
|Level 3 [Member]                                                                                                                  |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Total [Member]                                                                                               |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 402,468                                                | 414,614                                               
|Mortgage servicing rights                                                                                                         | 1,587                                                  | 1,552                                                 
|Total assets at fair value                                                                                                        | 404,135                                                | 416,205                                               
|Recurring [Member] | Total [Member] | U.S. government sponsored agencies debt securities [Member]                                 |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 2,070                                                  | 2,077                                                 
|Recurring [Member] | Total [Member] | Residential mortgage-backed securities - GSE [Member]                                       |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 337,564                                                | 341,147                                               
|Recurring [Member] | Total [Member] | Residential mortgage-backed securities - Private [Member]                                   |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 20,282                                                 | 20,752                                                
|Recurring [Member] | Total [Member] | Commercial mortgage-backed securities - GSE [Member]                                        |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 21,590                                                 | 21,439                                                
|Recurring [Member] | Total [Member] | Commercial mortgage-backed securities - Private [Member]                                    |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 9,844                                                  | 9,585                                                 
|Recurring [Member] | Total [Member] | Business Development Company investment [Member]                                            |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 2,651                                                  | 2,737                                                 
|Recurring [Member] | Total [Member] | Corporate notes [Member]                                                                    |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 8,467                                                  | 16,877                                                
|Recurring [Member] | Level 1 [Member]                                                                                             |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 2,651                                                  | 2,737                                                 
|Mortgage servicing rights                                                                                                         | 0                                                      | 0                                                     
|Total assets at fair value                                                                                                        | 2,651                                                  | 2,737                                                 
|Recurring [Member] | Level 1 [Member] | U.S. government sponsored agencies debt securities [Member]                               |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Level 1 [Member] | Residential mortgage-backed securities - GSE [Member]                                     |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Level 1 [Member] | Residential mortgage-backed securities - Private [Member]                                 |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Level 1 [Member] | Commercial mortgage-backed securities - GSE [Member]                                      |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          |                                                        | 0                                                     
|Recurring [Member] | Level 1 [Member] | Commercial mortgage-backed securities - Private [Member]                                  |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Level 1 [Member] | Business Development Company investment [Member]                                          |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 2,651                                                  | 2,737                                                 
|Recurring [Member] | Level 1 [Member] | Corporate notes [Member]                                                                  |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Level 2 [Member]                                                                                             |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 399,817                                                | 411,877                                               
|Mortgage servicing rights                                                                                                         | 0                                                      | 0                                                     
|Total assets at fair value                                                                                                        | 399,897                                                | 411,916                                               
|Recurring [Member] | Level 2 [Member] | U.S. government sponsored agencies debt securities [Member]                               |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 2,070                                                  | 2,077                                                 
|Recurring [Member] | Level 2 [Member] | Residential mortgage-backed securities - GSE [Member]                                     |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 337,564                                                | 341,147                                               
|Recurring [Member] | Level 2 [Member] | Residential mortgage-backed securities - Private [Member]                                 |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 20,282                                                 | 20,752                                                
|Recurring [Member] | Level 2 [Member] | Commercial mortgage-backed securities - GSE [Member]                                      |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 21,590                                                 | 21,439                                                
|Recurring [Member] | Level 2 [Member] | Commercial mortgage-backed securities - Private [Member]                                  |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 9,844                                                  | 9,585                                                 
|Recurring [Member] | Level 2 [Member] | Business Development Company investment [Member]                                          |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Level 2 [Member] | Corporate notes [Member]                                                                  |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 8,467                                                  | 16,877                                                
|Recurring [Member] | Level 3 [Member]                                                                                             |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Mortgage servicing rights                                                                                                         | 1,587                                                  | 1,552                                                 
|Total assets at fair value                                                                                                        | 1,587                                                  | 1,552                                                 
|Recurring [Member] | Level 3 [Member] | U.S. government sponsored agencies debt securities [Member]                               |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Level 3 [Member] | Residential mortgage-backed securities - GSE [Member]                                     |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Level 3 [Member] | Residential mortgage-backed securities - Private [Member]                                 |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Level 3 [Member] | Commercial mortgage-backed securities - GSE [Member]                                      |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          |                                                        | 0                                                     
|Recurring [Member] | Level 3 [Member] | Commercial mortgage-backed securities - Private [Member]                                  |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Level 3 [Member] | Business Development Company investment [Member]                                          |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Recurring [Member] | Level 3 [Member] | Corporate notes [Member]                                                                  |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Available-for-sale investment securities                                                                                          | 0                                                      | 0                                                     
|Interest Rate Swap [Member] | Level 1 [Member]                                                                                    |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 0                                                      |                                                       
|Interest Rate Swap [Member] | Level 2 [Member]                                                                                    |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 41                                                     |                                                       
|Interest Rate Swap [Member] | Level 3 [Member]                                                                                    |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 0                                                      |                                                       
|Interest Rate Swap [Member] | Recurring [Member] | Total [Member]                                                                 |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 41                                                     |                                                       
|Interest Rate Swap [Member] | Recurring [Member] | Level 1 [Member]                                                               |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 0                                                      |                                                       
|Interest Rate Swap [Member] | Recurring [Member] | Level 2 [Member]                                                               |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 41                                                     |                                                       
|Interest Rate Swap [Member] | Recurring [Member] | Level 3 [Member]                                                               |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 0                                                      |                                                       
|Interest Rate Locks and Forward Loan Sales Commitments [Member] | Level 1 [Member]                                                |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 0                                                      |                                                       
|Interest Rate Locks and Forward Loan Sales Commitments [Member] | Level 2 [Member]                                                |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 39                                                     |                                                       
|Interest Rate Locks and Forward Loan Sales Commitments [Member] | Level 3 [Member]                                                |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 0                                                      |                                                       
|Interest Rate Locks and Forward Loan Sales Commitments [Member] | Recurring [Member] | Total [Member]                             |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 39                                                     | 39                                                    
|Interest Rate Locks and Forward Loan Sales Commitments [Member] | Recurring [Member] | Level 1 [Member]                           |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 0                                                      | 0                                                     
|Interest Rate Locks and Forward Loan Sales Commitments [Member] | Recurring [Member] | Level 2 [Member]                           |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | 39                                                     | 39                                                    
|Interest Rate Locks and Forward Loan Sales Commitments [Member] | Recurring [Member] | Level 3 [Member]                           |                                                        |                                                       
|**Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]**                                                   |                                                        |                                                       
|Derivative assets                                                                                                                 | $ 0                                                    | $ 0                                                   
|                                                                                                                                 
|[1]
              Derived from audited consolidated financial statements                                                          | [1]                                                    | Derived from audited consolidated financial statements
|[1]                                                                                                                               | Derived from audited consolidated financial statements

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