UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Total
Balance at Mar. 31, 2013	$ 129	$ 99,641	$ (67,306)	$ 205,358	$ 410	$ 238,232
Balance (in shares) at Mar. 31, 2013	8,149,706					8,149,706
Issuance of shares for option exercises	0	559	0	0	0	559
Issuance of shares for option exercises (in shares)	40,000
Excess tax benefit of share based compensation	0	1,366	0	0	0	1,366
Issuance of restricted stock awards	1	0	0	0	0	1
Issuance of restricted stock awards (in shares)	86,359
Share-based compensation		2,959	0	5	0	2,964
Repurchase of common stock	0	0	(10,308)	0	0	(10,308)
Repurchase of common stock (in shares)	(187,581)
Net earnings	0	0	0	27,051	0	27,051
Foreign currency translation adjustment (net of tax of $1)	0	0	0	0	(121)	(121)
Balance at Dec. 31, 2013	$ 130	$ 104,525	$ (77,614)	$ 232,414	$ 289	$ 259,744
Balance (in shares) at Dec. 31, 2013	8,088,484					8,088,484