Consolidated Statements of Stockholders' Equity and Comprehensive Income (USD $) In Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance at Jun. 30, 2010	$ 285	$ 206,193	$ 118,111	$ (2,813)	$ (148,850)	$ 172,926
Net income			16,401			16,401
Other comprehensive income (loss)				2,210		2,210
Purchase of treasury stock					(4,422)	(4,422)
Exercise of stock options under the equity plans	3	3,725				3,728
Tax benefit from exercise of stock options		164				164
Equity-based compensation		4,097				4,097
Balance at Jun. 30, 2011	288	214,179	134,512	(603)	(153,272)	195,104
Net income			8,614			8,614
Other comprehensive income (loss)				(2,423)		(2,423)
Purchase of treasury stock					(24,651)	(24,651)
Exercise of stock options under the equity plans	3	4,509				4,512
Issuance of restricted stock	3	(3)
Tax benefit from exercise of stock options		494				494
Equity-based compensation		3,853				3,853
Balance at Jun. 30, 2012	294	223,032	143,126	(3,026)	(177,923)	185,503
Net income			15,056			15,056
Other comprehensive income (loss)				2,168		2,168
Purchase of treasury stock					(20,316)	(20,316)
Exercise of stock options under the equity plans	3	3,081				3,084
Issuance of restricted stock	1	(1)
Tax benefit from exercise of stock options		459				459
Equity-based compensation		3,784				3,784
Balance at Jun. 30, 2013	$ 298	$ 230,355	$ 158,182	$ (858)	$ (198,239)	$ 189,738