CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Revenues	$ 25,384	$ 24,848
Cost of sales:
Cost of sales	15,032	15,802
Depreciation expense	1,335	1,499
Total cost of sales	16,367	17,301
Gross profit	9,017	7,547
Operating expenses:
Selling, general and administrative	9,672	9,113
Depreciation and amortization	197	205
Total operating expenses	9,869	9,318
Operating loss	(852)	(1,771)
Other income (expense):
Interest expense, net	(34)	(247)
Gain on sale of assets	1,070	7
Equity in net income of joint venture and other income	0	226
Other, net	0	(20)
Total other income (expense)	1,036	(34)
Income (loss) before income taxes	184	(1,805)
Income tax expense	(20)	(36)
Net income (loss)	$ 164	$ (1,841)
Net income (loss) per share:
Basic	$ 0.01	$ (0.12)
Diluted	$ 0.01	$ (0.12)
Weighted-average shares outstanding:
Basic	15,520,000	15,104,000
Diluted	15,520,000	15,104,000