CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net sales	$ 108,920	$ 108,994	$ 103,846
Cost of goods sold	73,753	75,593	71,598
Gross profit	35,167	33,401	32,248
Selling, general and administrative expense	19,593	19,430	18,641
Operating income	15,574	13,971	13,607
Interest income	390	50	66
Income before income taxes	15,964	14,021	13,673
Provision for income taxes	5,507	4,903	5,012
Net income	$ 10,457	$ 9,118	$ 8,661
Basic and diluted earnings per common share	$ 0.84	$ 0.73	$ 0.70
Cash dividends per share	$ 0.20	$ 0.20	$ 0.20
Basic and diluted weighted average shares outstanding	12,416	12,408	12,401

Aggregate dividends paid during the period for each share of common stock outstanding.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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