CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Net sales	$ 150,871	$ 121,415	$ 376,575	$ 333,439
Cost of sales	119,344	99,260	302,835	272,121
Gross profit	31,527	22,155	73,740	61,318
Selling, general and administrative expenses	19,781	14,581	47,769	41,678
Operating income	11,746	7,574	25,971	19,640
Other (expense) income:
Interest expense	(492)	(656)	(1,570)	(2,067)
Interest and other income, net	333	630	1,906	1,878
Other (expense) income:	(159)	(26)	336	(189)
Income before income taxes	11,587	7,548	26,307	19,451
Income tax provision	3,994	2,169	9,381	6,451
Net income	$ 7,593	$ 5,379	$ 16,926	$ 13,000
Net income per common share	$ 0.28	$ 0.20	$ 0.63	$ 0.49
Diluted net income per common share	$ 0.28	$ 0.20	$ 0.62	$ 0.49
Weighted average shares outstanding:
Basic	27,108	26,634	26,956	26,558
Diluted	27,485	26,870	27,342	26,747