CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Revenues	$ 9,156	$ 7,904	$ 15,314	$ 12,777
Cost of sales:
Cost of sales	5,284	4,714	8,929	7,336
Depreciation expense	352	319	699	635
Total cost of sales	5,636	5,033	9,628	7,971
Gross profit	3,520	2,871	5,686	4,806
Operating expenses:
Selling, general and administrative	2,366	2,013	4,229	3,982
Depreciation and amortization	33	143	65	292
Total operating expenses	2,399	2,156	4,294	4,274
Operating income	1,121	715	1,392	532
Other income (expense):
Interest expense, net	(54)	(34)	(91)	(86)
Equity in net (loss) income of joint venture	0	(32)	1	(140)
Other, net	4	5	14	52
Total other income (expense)	(50)	(61)	(76)	(174)
Income before income taxes	1,071	654	1,316	358
Income tax expense	(49)	(15)	(70)	(19)
Net income	$ 1,022	$ 639	$ 1,246	$ 339
Net income per share, basic and diluted	$ 0.1	$ 0.06	$ 0.12	$ 0.03
Weighted-average common shares outstanding, basic and diluted	10,324	10,197	10,238	10,214