Net Income Per Share (Tables)

9 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Schedule of reconciliation of the numerators and denominators of the basic and diluted net income per share computations

	Three Months Ended				Nine Months Ended
	December 31,				December 31,
	2012		2011		2012		2011
Net income (numerator):
Net income	$	4,577	$	3,898	$	12,563	$	12,665
Shares (denominator):
Weighted average number of common shares  outstanding used in basic computation		19,808		20,082		19,963		20,788
Common shares issuable upon the vesting  of restricted stock		105		88		104		88
Common shares issuable upon conversion  of preferred shares		10		10		10		10
Shares used in diluted computation		19,923		20,180		20,077		20,886
Net income per common share:
Basic	$	0.23	$	0.19	$	0.63	$	0.61
Diluted	$	0.23	$	0.19	$	0.63	$	0.61