UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Total
Balance at Mar. 31, 2012	$ 127	$ 93,545	$ (65,416)	$ 190,906	$ 465	$ 219,627
Balance (in shares) at Mar. 31, 2012	7,999,895					7,999,895
Excess tax benefit of share based compensation	0	239	0	0	0	239
Effect of share-based compensation	1	663	0	0	0	664
Effect of share-based compensation (in shares)	95,775
Purchase of treasury stock	0	0	(1,149)	0	0	(1,149)
Purchase of treasury stock (in shares)	(36,621)
Comprehensive income, net of tax: [Abstract]
Net earnings	0	0	0	8,062	0	8,062
Foreign currency translation adjustment (net of tax of $2)	0	0	0	0	(50)	(50)
Total comprehensive income						8,012
Balance at Jun. 30, 2012	$ 128	$ 94,447	$ (66,565)	$ 198,968	$ 415	$ 227,393
Balance (in shares) at Jun. 30, 2012	8,059,049					7,950,000