Net Income Per Share (Tables)

12 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

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

	Year Ended March 31,
	2014		2013		2012
Net income (numerator):
Net income	$	17,972	$	17,165	$	16,659
Shares (denominator)
Weighted average number of common shares outstanding used in basic computation		19,901		19,926		20,613
Common shares issuable upon the vesting of restricted stock		132		113		85
Common shares issuable upon conversion of preferred shares		10		10		10
Shares used in diluted computation		20,043		20,049		20,708
Net income per common share:
Basic	$	0.90	$	0.86	$	0.81
Diluted	$	0.90	$	0.86	$	0.80