Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Results of Operations (Unaudited) [Abstract]

summarizes the unaudited quarterly results of operations

	Year ended December 31, 2012
	March 31		June 30		Sept. 30		Dec. 31
Net sales	$	104,519	$	98,824	$	86,586	$	80,155
Income from operations		9,033		8,275		5,917		1,846
Net income		5,909		7,038		3,115		8,206
Basic net income per share		0.35		0.41		0.18		0.48
Diluted net income per share		0.35		0.41		0.18		0.48
Weighted average shares outstanding:
Basic number of shares		16,961		17,026		17,044		17,044
Effect of dilutive stock options		114		113		106		106
Diluted number of shares		17,075		17,139		17,150		17,150
	Year ended December 31, 2011
	March 31		June 30		Sept. 30		Dec. 31
Net sales	$	111,307	$	115,922	$	101,143	$	96,319
Income from operations		9,217		9,251		5,795		5,169
Net income		5,507		5,827		4,702		4,901
Basic net income per share		0.33		0.35		0.28		0.29
Diluted net income per share		0.33		0.34		0.28		0.29
Weighted average shares outstanding:
Basic number of shares		16,664		16,864		16,949		16,949
Effect of dilutive stock options		246		255		112		108
Diluted number of shares		16,910		17,119		17,061		17,057