Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Consolidated Statements Of Operations [Abstract]
NET SALES	$ 122,530	$ 110,532	$ 345,581	$ 327,414
COST OF GOODS SOLD	(92,862)	(85,488)	(263,300)	(252,666)
GROSS MARGIN	29,668	25,044	82,281	74,748
SELLING, GENERAL AND ADMINISTRATIVE	(18,709)	(18,455)	(56,691)	(55,014)
LITIGATION SETTLEMENT COSTS	250		250	(6,250)
OPERATING INCOME (LOSS)	11,209	6,589	25,840	13,484
OTHER INCOME (EXPENSE):
Total	77	471	748	1,394
Interest and other income	131	471	837	1,394
Interest expense	(54)		(89)
INCOME (LOSS) BEFORE INCOME TAXES	11,286	7,060	26,588	14,878
INCOME TAX (PROVISION) BENEFIT	(4,330)	(2,640)	(10,070)	(5,520)
NET INCOME (LOSS)	$ 6,956	$ 4,420	$ 16,518	$ 9,358
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING:
Basic	7,436	7,265	7,408	7,198
Diluted	7,702	7,675	7,681	7,546
EARNINGS (LOSS) PER SHARE OF COMMON STOCK:
Basic	$ 0.94	$ 0.61	$ 2.23	$ 1.30
Diluted	$ 0.90	$ 0.58	$ 2.15	$ 1.24
CASH DIVIDENDS DECLARED PER COMMON SHARE	$ 0.18	$ 0.15	$ 0.54	$ 0.45