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Net Income Per Share (Tables)
3 Months Ended
Jun. 30, 2012
Earnings Per Share [Abstract]  
Reconciliation of the numerators and denominators of the basic and diluted net income per share computations
 
Three Months Ended June 30,
2012
2011
Net income (numerator):
Net income
$ 3,952 $ 4,837
Shares (denominator):
 
Weighted average number of common shares outstanding used in basic computation
20,119 21,648
 
Common shares issuable upon vesting of restricted stock
116 109
 
Common shares issuable upon conversion of preferred shares
10 10
Shares used in diluted computation
20,245 21,767
Net income per common share:
Basic
$ 0.20 $ 0.22
Diluted
$ 0.20 $ 0.22