Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations

	Quarter ended
	March 31		June 30		Sept. 30		Dec. 31
	(In millions, except per share amounts)
2014:
Net sales	$	25.8	$	26.8	$	26.5	$	24.7
Gross profit		7.7		8.6		8.1		7.8
Operating income		3.3		3.9		3.4		3.0
Net income		2.1		2.6		2.2		1.7
Basic and diluted earnings per share	$	.17	$	.21	$	.18	$	.14
2015:
Net sales	$	27.9	$	28.9	$	26.5	$	25.7
Gross profit		8.6		9.2		8.1		7.5
Operating income		3.7		4.3		3.4		2.6
Net income		2.4		2.8		2.2		1.7
Basic and diluted earnings per share	$	.19	$	.23	$	.18	$	.13