Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details Textual)

v2.4.0.8
Stock-Based Compensation (Details Textual) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Stock Compensation Plans (Textual) [Abstract]    
Percentage of time vested shares, vest on first anniversary of grant date 100.00%  
Percentage of performance shares, vest third anniversary of grant date 100.00%  
Percentage of stock options vesting per year 33.33%  
Stock Compensation Plans (Additional Textual) [Abstract]    
Number of shares authorized under stock incentive plan 1,375  
Maximum number of shares authorized for awards other than stock options 250  
Stock option awards granted 0 49
Stock options maximum term 10 years  
Stock options vesting period 3 years  
Stock Compensation Plan [Member]
   
Stock Compensation Plans (Textual) [Abstract]    
Stock based compensation expense $ 180 $ 156
Income tax benefit to stock based compensation 63 55
Employee Stock Purchase Plan [Member]
   
Stock Compensation Plans (Textual) [Abstract]    
Stock based compensation expense 15 15
Income tax benefit to stock based compensation $ 5 $ 5
Discounted purchase price of common stock percentage on fair market value 85.00%  
Shares approved for purchase under ESPP 200  
Restricted Stock [Member]
   
Stock Compensation Plans (Textual) [Abstract]    
Restricted stock awards 32 26
Officer [Member] | Performance Vested Restricted Stock [Member]
   
Stock Compensation Plans (Textual) [Abstract]    
Restricted stock awards 14 18
Director [Member] | Time Vested Restricted Stock [Member]
   
Stock Compensation Plans (Textual) [Abstract]    
Restricted stock awards 6 8
Officers and Key Employees [Member]
   
Stock Compensation Plans (Textual) [Abstract]    
Percentage of time vested shares vesting per year 33.33%  
Officers and Key Employees [Member] | Time Vested Restricted Stock [Member]
   
Stock Compensation Plans (Textual) [Abstract]    
Restricted stock awards   12