Quarterly results of operations (unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly results of operations (unaudited) [Abstract]

Quarterly results of operations

Our quarterly results of operations for 2016 and 2015 are as follows:

	Quarter Ended
(In thousands, except per share amounts)	March 31		June 30		September 30		December 31
2016:
Net sales	$	14,357	$	14,801	$	14,474	$	13,603
Gross profit		5,885		5,983		5,915		6,016
Net income		625		753		883		1,356
Net income per common share:
Basic		0.08		0.10		0.12		0.18
Diluted		0.08		0.10		0.12		0.18

2015:
Net sales	$	16,164	$	17,224	$	14,172	$	12,116
Gross profit		6,492		7,161		6,291		5,034
Net income		144		1,388		1,028		532
Net income per common share:
Basic		0.02		0.18		0.13		0.07
Diluted		0.02		0.18		0.13		0.07