CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Net sales	$ 29,948	$ 27,075
Cost of goods sold	20,262	18,870
Gross profit	9,686	8,205
Selling, general and administrative expense	5,162	4,852
Operating income	4,524	3,353
Interest income	335	32
Income before taxes	4,859	3,385
Provision for income taxes	1,708	1,185
Net income	$ 3,151	$ 2,200
Basic and diluted net income per common share	$ 0.25	$ 0.18
Cash dividends per share	$ 0.05	$ 0.05
Basic and diluted weighted average shares outstanding	12,419	12,411

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

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Total costs related to goods produced and sold during the reporting period.

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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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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Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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