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Stock-Based Compensation (Tables)
9 Months Ended
Dec. 31, 2012
Stock Option Activity under All Plans and Other Grants

The following table summarizes stock option activity under all plans and other grants authorized by the Board of Directors.

 

     Number
of Shares
    Aggregate
Intrinsic
Value
(in
thousands)
     Approximate
Remaining
Contractual
Term
(Years)
     Weighted-
Average
Exercise
Price
 

Outstanding at March 31, 2012

     759,577     $ 800         7       $ 8.17   

Granted

     411,000       —           10         8.09   

Exercised

     (25,415     162         —           6.39   

Canceled or expired

     (32,001     —           —           8.55   
  

 

 

         

Outstanding at December 31, 2012

     1,113,161       740         7         8.17   
  

 

 

         

Options exercisable at December 31, 2012

     607,159       625         6         8.20   

Unvested options expected to become exercisable after December 31, 2012

     506,002       114         9         8.14   

Shares available for future option grants at December 31, 2012 (a)

     641,357          

 

(a) May be decreased by restricted stock grants.
Restricted Stock Award Activity under All Plans

A summary of restricted stock award activity under all plans follows.

 

     Number
of Shares
    Weighted –
Average
Grant Date

Fair Value
 

Non-vested at March 31, 2012

     21,094     $ 8.54   

Granted

     23,934       7.52   

Vested

     (20,903     8.56   

Cancelled

     —          —     
  

 

 

   

Non-vested at December 31, 2012

     24,125       7.51   
  

 

 

   
Black Scholes Based Option Pricing Model [Member]
 
Assumptions to Estimate Fair Value of Option Grants
     2013
$3.02
value
per
option
    2013
$3.05
value
per
option
    2012
$2.75
value
per
option
    2012
$2.58
value
per
option
    2012
$2.72
value
per
option
    2012
$2.81
value
per
option
    2012
$2.13
value
per
option
 

Dividend yield

     0.0     0.0     0.0     0.0     0.0     0.0     0.0

Volatility

     35.5     34.0     25.6     25.8     25.8     25.4     25.3

Risk-free interest rate

     1.2     1.2     1.5     1.6     1.6     1.9     1.9

Expected term of options (in years)

     7.0       7.0       7.0       7.0       7.0       7.0       7.0  
Monte Carlo Simulation [Member]
 
Assumptions to Estimate Fair Value of Option Grants

Company used the following assumptions to estimate the fair value of option grants under the Monte Carlo simulation:

 

     2013 $1.86
value per
option
 

Dividend yield

     0.0

Volatility

     34.0

Risk-free interest rate

     1.8

Expected term of options (in years)

     10.0   

Forfeiture adjustment

     0.2

Suboptimal behavior factor

     1.9