Quarterly Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	Quarter
(Table only in thousands)	First		Second		Third			Fourth
Year ended December 31, 2014
Net sales	$	57,170	$	66,641	$	63,300		$	76,106
Gross profit		19,729		21,449		21,058			22,587
Net income		3,021		4,493		3,703			1,860
Basic earnings per share	$	0.12	$	0.18	$	0.14		$	0.07
Diluted earnings per share	$	0.12	$	0.17	$	0.14		$	0.07
Year ended December 31, 2013
Net sales	$	34,361	$	44,433	$	49,796		$	68,727
Gross profit		11,184		14,297		14,554			21,520
Net income (loss)		2,208		3,043		(1,461	)		2,767
Basic earnings per share	$	0.13	$	0.17	$	(0.07	)	$	0.11
Diluted earnings per share	$	0.12	$	0.17	$	(0.07	)	$	0.11