Summarized Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Sep. 30, 2012

Summarized Quarterly Results of Operations [Abstract]

Summarized quarterly results of operations

	2012 Quarter Ended
	Dec. 31		March 31		June 30		Sept. 30
Net sales	$	28,510	$	34,079	$	30,968	$	31,549
Cost of goods sold		22,045		26,601		23,047		25,332
Income before income tax provision		1,733		2,696		3,302		1,669
Income tax provision		547		972		861		472
Net income		1,186		1,724		2,441		1,197
Net income per share:
Basic		0.22		0.32		0.46		0.22
Diluted		0.22		0.32		0.46		0.22

	2011 Quarter Ended
	Dec. 31		March 31		June 30		Sept. 30
Net sales	$	21,396	$	26,804	$	28,875	$	30,282
Cost of goods sold		16,421		19,878		22,075		22,542
Income before income tax provision		1,857		3,002		2,879		3,500
Income tax provision		651		1,007		815		1,316
Net income		1,206		1,995		2,064		2,184
Net income per share:
Basic		0.23		0.38		0.39		0.41
Diluted		0.23		0.38		0.39		0.41