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Share-Based Payments (Tables)
12 Months Ended
Mar. 31, 2013
Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]  
Schedule of grant using the black scholes option-pricing model with weighted-average assumptions
 
     2013     2012     2011  

Risk-free interest rate

     0.71     1.84     1.88

Weighted average expected original term

     5 years        5 years        5 years   

Expected volatility

     48     49     49

Expected dividend yield

     3.20     0.00     0.00
Schedule of option activity under the equity plans

Options

   Shares     Weighted
Average
Exercise
Price
     Weighted
Average
Remaining
Contractual
Term
     Aggregate
Intrinsic
Value
 

Outstanding at March 31, 2012

     501,880      $ 6.36         

Granted

     96,000      $ 11.16         

Exercised

     (97,594   $ 6.31         

Forfeited

     (26,840   $ 10.81         
  

 

 

   

 

 

       

Outstanding at March 31, 2013

     473,446      $ 5.63         5.91       $ 4,296,342   
  

 

 

   

 

 

    

 

 

    

 

 

 

Exercisable at March 31, 2013

     319,726      $ 3.86         4.75       $ 3,467,212   
  

 

 

   

 

 

    

 

 

    

 

 

 
Schedule of non-vested restricted shares under the 2006 plan

Restricted Share Awards

   Shares     Weighted
Average
Grant Date
Fair Value
     Weighted
Average
Remaining
Contractual
Term
     Aggregate
Intrinsic
Value
 

Non-vested at March 31, 2012

     100,500      $ 5.85         

Granted

     85,000      $ 13.07         

Vested

     (89,500   $ 3.47         

Forfeited

     —         $ —           
  

 

 

   

 

 

       

Non-vested at March 31, 2013

     96,000      $ 12.90         2.04       $ 1,411,200   
  

 

 

   

 

 

    

 

 

    

 

 

 
Schedule of non-vested performance shares under the 2006 plan
 

Performance Share Awards

   Shares     Weighted
Average
Grant Date
Fair Value
     Weighted
Average
Remaining
Contractual
Term
   Aggregate
Intrinsic
Value
 

Non-vested at March 31, 2012

     —        $ —          

Granted

     33,500      $ 13.11         

Vested

     (10,500   $ 13.25         

Forfeited

     (23,000   $ 13.04         
  

 

 

   

 

 

       

Non-vested at March 31, 2013

     —        $ —           $