Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

v2.4.0.6
Stock-Based Compensation (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Stock-Based Compensation (Textual) [Abstract]        
Number of shares authorized under stock incentive plan 1,375   1,375  
Maximum number of shares authorized for awards other than stock options     250  
Stock option awards granted 0 0 49 9
Stock options vesting period     3 years  
Stock options maximum term     10 years  
Percentage of stock options vesting per year     33.33%  
Restricted Stock Awards 0 4 26 32
Percentage of performance shares, vest third anniversary of grant date     100.00%  
Percentage of time vested shares vested on second and fourth anniversary of grant date     50.00%  
Percentage of time vested shares, vest on first anniversary of grant date     100.00%  
Stock Compensation Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Income tax benefit to stock based compensation 46 47 149 150
Stock based compensation expense 131 131 423 421
Employee Stock Purchase Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Income tax benefit to stock based compensation 5 5 13 15
Stock based compensation expense 13 14 40 44
Discounted purchase price of common stock percentage on fair market value     85.00%  
Shares approved for purchase under ESPP     200