| **Employee Benefit Plans (Tables)**                                                                                    | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
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| Pension Plan [Member]                                                                                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| **Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]**                         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| Schedule of Change in Benefit Obligation, Plan Assets, Funded Status and Amounts Recognized in Consolidated Statements | The following table sets forth the plan’s change in benefit obligation, plan assets and the funded status of the pension plan, using a December 31 measurement date, and amounts recognized in the consolidated statements as of December 31: (dollars in thousands)      2013 2012Change in Benefit Obligation    Benefit obligation at beginning of year $15,342 $14,597Service cost — —Interest cost 646 668Net actuarial (gain) loss (1,219) 758Benefits paid (804) (681)Benefit obligation at end of year $13,965 $15,342Change in Plan Assets    Fair value of plan assets at beginning of year $12,370 $9,234Actual return on plan assets 1,265 1,017Employer contributions — 2,800Benefits paid (804) (681)Fair value of plan assets at December 31 $12,831 $12,370Funded Status at End of Year $(1,134) $(2,972)Amounts Recognized in the Consolidated Balance Sheets    Other Liabilities $(1,134) $(2,972)Amounts Recognized in Accumulated Other Comprehensive Income    Net actuarial loss $5,223 $7,312Net amount recognized $5,223 $7,312Weighted-Average Allocation of Plan Assets at End of Year    Equity securities 65% 62%Debt securities 35 36Cash and cash equivalents — 2Fixed income funds — —Total 100% 100%Weighted-Average Plan Assumptions at End of Year    Discount rate 5.10% 4.25%Expected long-term rate of return on plan assets 8.00% 8.00%Rate of increase in compensation levels 5.50% 5.50% |
| Schedule of Amounts Recognized in Net Periodic Benefit Cost and Other Comprehensive Income (Loss)                      | Components of net periodic pension cost (income) and other amounts recognized in other comprehensive income are as follows: (dollars in thousands) 2013 2012 2011Net Periodic Pension Cost (Income)      Service cost $— $— $—Interest cost 646 668 712Expected return on plan assets (958) (804) (690)Amortization of prior service cost — — —Amortization of net actuarial loss 562 524 411Total pension cost $250 $388 $433Other Changes in Plan Assets and Benefit Obligations      Recognized in Other Comprehensive Income:      Net actuarial loss (gain) $(2,089) $22 $1,897Amortization of prior service credit — — —Total recognized in other comprehensive loss (income) (2,089) 22 1,897Total Recognized in Net Periodic Pension Cost and Other Comprehensive Loss $(1,839) $410 $2,330                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Schedule of Fair Value of Plan Assets by Major Asset Category                                                          | The following table provides the fair values of investments held in the pension plan by major asset category:December 31, 2013(dollars in thousands) FairValue Quoted Prices in Active Markets for Identical Assets(Level 1) Significant Other Observable Inputs(Level 2)Equity securities $8,321 $8,321 $—Debt securities 4,473 4,473 —Other 37 37 —Total fair value of pension assets $12,831 $12,831 $—December 31, 2012(dollars in thousands) FairValue Quoted Prices in Active Markets for Identical Assets(Level 1) Significant Other Observable Inputs(Level 2)Equity securities $7,752 $7,752 $—Debt securities 4,429 4,429 —Other 189 189 —Total fair value of pension assets $12,370 $12,370 $—                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| SERP [Member]                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| **Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]**                         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| Schedule of Change in Benefit Obligation, Plan Assets, Funded Status and Amounts Recognized in Consolidated Statements | The following table sets forth the change in benefit obligation, plan assets and the funded status of the three SERPs, using a December 31 measurement date, and amounts recognized in the consolidated statements as of December 31: (dollars in thousands)      2013 2012Change in Benefit Obligation    Benefit obligation at beginning of year $1,345 $1,980Service cost — —Interest cost 84 107Amendments to plan — —Net actuarial loss (gain) (13) (457)Benefits paid (1,153) (285)Benefit obligation at end of year $263 $1,345Change in Plan Assets    Employer contributions $1,153 $285Benefits paid (1,153) (285)Fair value of plan assets at end of year $— $—Funded Status at December 31 $(263) $(1,345)Amounts Recognized in the Consolidated Balance Sheets    Other Liabilities $263 $1,345Amounts Recognized in Accumulated Other Comprehensive Loss    Net actuarial gain $— $(1,002)Prior service cost — 155Net amount recognized $— $(847)Weighted-Average Plan Assumption at End of Year:    Discount rate 7.00% 7.00%                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Schedule of Amounts Recognized in Net Periodic Benefit Cost and Other Comprehensive Income (Loss)                      | Components of net periodic SERP cost and other amounts recognized in other comprehensive loss are as follows: (dollars in thousands) 2013 2012 2011Net Periodic SERP Cost      Service cost $— $— $—Interest cost 84 107 137Amortization of prior service cost 155 31 48Amortization of net actuarial gain (1,015) (48) (108)Net periodic SERP cost $(776) $90 $77Other Changes in Plan Assets and Benefit Obligations      Recognized in Other Comprehensive Income      Net actuarial loss (gain) $1,002 $(409) $168Amortization of prior service credit (155) (31) (48)Total recognized in other comprehensive loss (income) 847 (440) 120Total Recognized in Net Periodic SERP (Income) Cost and Other Comprehensive Income (Loss) $71 $(350) $197                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Other Postretirement Defined Benefit Plans [Member]                                                                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| **Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]**                         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| Schedule of Change in Benefit Obligation, Plan Assets, Funded Status and Amounts Recognized in Consolidated Statements | The following table sets forth the plans change in benefit obligation, plan assets and the funded status of the postretirement plans, using a December 31 measurement date, and amounts recognized in the consolidated statements as of December 31: (dollars in thousands)      2013 2012Change in Benefit Obligation    Benefit obligation at beginning of year $1,377 $1,459Service cost — —Interest cost 57 63Net actuarial (gain) loss (223) (84)Plan participant contributions 81 79Benefits paid (154) (140)Benefit obligation at end of year $1,138 $1,377Change in Plan Assets    Employer contributions $73 $61Plan participant contributions 81 79Benefits paid (154) (140)Fair value of plan assets at end of year $— $—Funded Status at December 31 $(1,138) $(1,377)Amounts Recognized in the Consolidated Balance Sheets    Other Liabilities $1,138 $1,377Amounts Recognized in Accumulated Other Comprehensive Loss    Net actuarial loss $(138) $86Prior service credit (16) (21)Net amount recognized $(154) $65Weighted-Average Plan Assumption at End of Year:    Discount rate 5.10% 4.25%                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Schedule of Amounts Recognized in Net Periodic Benefit Cost and Other Comprehensive Income (Loss)                      | Components of net postretirement benefit cost and other amounts recognized in other comprehensive income are as follows: (dollars in thousands) 2013 2012 2011Net Periodic Postretirement Benefit Cost      Service cost $— $— $—Interest cost 57 63 74Amortization of prior service credit (4) (4) (4)Amortization of net actuarial loss — — —Net periodic postretirement benefit cost $53 $59 $70Other Changes in Plan Assets and Benefit Obligations      Recognized in Other Comprehensive Income      Net actuarial (gain) loss $(223) $(84) $(223)Amortization of prior service cost 4 4 4Total recognized in other comprehensive (income) loss (219) (80) (219)Total Recognized in Net Periodic Postretirement Benefit Cost and Other Comprehensive (Income) Loss $(166) $(21) $(149)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |

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| - Definition
Schedule of Defined Benefit Plan Amounts Recognized in Net Periodic Benefit Cost and Other Comprehensive Income (Loss) [Table Text Block]
+ References
No definition available.
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| - Definition
Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans.  This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall.
+ References
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| - Definition
Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans.
+ References
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