Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Consolidated Statements Of Operations [Abstract]
Net sales	$ 120,750	$ 125,400	$ 351,330	$ 377,342
Cost of goods sold	(92,304)	(96,684)	(269,506)	(293,073)
Gross margin	28,446	28,716	81,824	84,269
Selling, general and administrative	(17,588)	(19,443)	(54,846)	(57,433)
Litigation settlement reimbursement	1,175	2,030	1,175	2,280
Operating income (loss)	12,033	11,303	28,153	29,116
Interest and other income	101	(60)	252	6
Interest expense		(9)		(69)
Income (loss) before income taxes	12,134	11,234	28,405	29,053
Income tax (provision) benefit	(4,510)	(4,290)	(10,640)	(10,980)
Net income (loss)	$ 7,624	$ 6,944	$ 17,765	$ 18,073
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING:
Basic	7,804	7,622	7,770	7,568
Diluted	7,922	7,836	7,872	7,771
EARNINGS (LOSS) PER SHARE OF COMMON STOCK:
Basic	$ 0.98	$ 0.91	$ 2.29	$ 2.39
Diluted	0.96	0.89	2.26	2.33
Cash dividends declared per common share	$ 0.20	$ 0.18	$ 0.60	$ 0.54