|**Share-based Compensation (Tables)**                        | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
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|**Share-based Compensation [Abstract]**                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Summary of share-based compensation expense for options      | The following table summarizes the share-based compensation expense for options, SSARs, restricted and performance awards included in the Condensed Consolidated Statements of Operations for the three endedJune 30, 2013and 2012:Three months endedJune 30,(In thousands)20132012Product development$142$53Sales and marketing156General and administrative21093Total share-based compensation expense$367$152                                                                                   
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|                                                             | Three months ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|                                                             | June 30,                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|(In thousands)                                               | 2013                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Product development                                          | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Sales and marketing                                          | 15                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|General and administrative                                   | 210                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Total share-based compensation expense                       | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Activity related stock options award                         | The following table summarizes the activity during the three monthsJune 30, 2013for stock options awarded under the 2006 Plan:NumberofOptionsWeighted-AverageExercisePriceRemainingContractualTermAggregateIntrinsicValue(In thousands, except share and per share data)(per share)(in years)Outstanding at April 1, 2013749,500$14.25Granted——Exercised(40,000)8.86Cancelled/expired——Outstanding and exercisable at June 30, 2013709,500$14.552.3$401                                            
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|                                                             | NumberofOptions                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|(In thousands, except share and per share data)              |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Outstanding at April 1, 2013                                 | 749,500                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Granted                                                      | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Exercised                                                    | (40,000                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Cancelled/expired                                            | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Outstanding and exercisable at June 30, 2013                 | 709,500                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Activity related SSARs award                                 | The following table summarizes the activity during thethree months endedJune 30, 2013for SSARs awarded under the 2011 and the 2006 Plan:Numberof RightsWeighted-AverageExercisePriceRemainingContractualTermAggregateIntrinsicValue(In thousands, except share and per share data)(per right)(in years)Outstanding at April 1, 2013683,119$6.27Granted116,40512.38Exercised(216,061)6.69Forfeited——Outstanding at June 30, 2013583,463$8.506.3$1,754Exercisable at June 30, 2013214,697$7.705.2$784
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|                                                             | Numberof Rights                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|(In thousands, except share and per share data)              |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Outstanding at April 1, 2013                                 | 683,119                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Granted                                                      | 116,405                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Exercised                                                    | (216,061                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Forfeited                                                    | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Outstanding at June 30, 2013                                 | 583,463                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Exercisable at June 30, 2013                                 | 214,697                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Activity related to restricted shares awarded by the Company | The following table summarizes the activity during thethree months endedJune 30, 2013for restricted shares awarded under the 2011 Plan:Numberof SharesWeighted-AverageGrant-Date FairValue(per share)Outstanding at April 1, 2013122,039$7.99Granted175,64412.38Vested——Forfeited——Outstanding at June 30, 2013297,683$10.60                                                                                                                                                                       
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|                                                             | Numberof Shares                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Outstanding at April 1, 2013                                 | 122,039                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Granted                                                      | 175,644                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Vested                                                       | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Forfeited                                                    | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Outstanding at June 30, 2013                                 | 297,683                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|Performance shares awarded by the Company                    | The following table summarizes the activity during thethree months endedJune 30, 2013for performance shares awarded under the 2011 Plan:NumberofSharesWeighted-AverageGrant-Date FairValue(per share)Outstanding at April 1, 201317,728$8.64Granted——Outstanding at June 30, 201317,728$8.64                                                                                                                                                                                                       
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|                                                             | NumberofShares                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
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|Outstanding at April 1, 2013                                 | 17,728                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Granted                                                      | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Outstanding at June 30, 2013                                 | 17,728                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             

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