Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Consolidated Statements Of Operations [Abstract]
Net sales	$ 118,530	$ 125,410	$ 230,580	$ 251,942
Cost of goods sold	(91,782)	(97,726)	(177,202)	(196,389)
Gross margin	26,748	27,684	53,378	55,553
Selling, general and administrative	(18,332)	(19,500)	(37,258)	(37,990)
Litigation settlement reimbursement (cost)		250		250
Operating income (loss)	8,416	8,434	16,120	17,813
Interest and other income	103	116	151	67
Interest expense		(24)		(61)
Income (loss) before income taxes	8,519	8,526	16,271	17,819
Income tax (provision) benefit	(3,130)	(3,160)	(6,130)	(6,690)
Net income (loss)	$ 5,389	$ 5,366	$ 10,141	$ 11,129
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING:
Basic	7,779	7,575	7,752	7,541
Diluted	7,906	7,821	7,865	7,774
EARNINGS (LOSS) PER SHARE OF COMMON STOCK:
Basic	$ 0.69	$ 0.71	$ 1.31	$ 1.48
Diluted	0.68	0.69	1.29	1.43
Cash dividends declared per common share	$ 0.20	$ 0.18	$ 0.40	$ 0.36