Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Sales	$ 64,711	$ 81,600
Cost of sales	51,312	63,876
Gross profit	13,399	17,724
Operating expenses:
Salaries and commissions	6,909	7,238
Other operating expenses	5,837	6,048
Depreciation and amortization	692	712
Total operating expenses	13,438	13,998
Operating income (loss)	(39)	3,726
Interest expense	175	265
Income (loss) before income taxes	(214)	3,461
Income tax expense (benefit)	(30)	1,275
Net income (loss)	$ (184)	$ 2,186
Earnings (loss) per share:
Basic (in dollars per share)	$ (0.01)	$ 0.13
Diluted (in dollars per share)	$ (0.01)	$ 0.13
Weighted average common shares outstanding:
Basic (in shares)	16,481,122	17,296,978
Diluted (in shares)	16,481,122	17,376,928
Dividends declared per share (in dollars per share)	$ 0.06	$ 0.12