CONSOLIDATED STATEMENTS OF INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Revenue	$ 9,709	$ 8,031	$ 27,122	$ 23,016
Cost, expenses and other income:
Cost of goods sold, exclusive of depreciation and amortization	6,893	6,125	20,295	17,413
Selling, general and administrative	1,486	1,262	4,563	4,181
Interest expense	18	12	53	31
Arbitration award expense		5,419	50	5,419
Depreciation and amortization	185	150	525	490
Insurance proceeds - arbitration			(4,500)
Other income, net	(1)	(4)	(131)	(16)
Total expenses	8,581	12,964	20,855	27,518
Income (loss) before income tax provision	1,128	(4,933)	6,267	(4,502)
Income tax provision (benefit)	384	(1,632)	2,131	(1,503)
Net income (loss)	$ 744	$ (3,301)	$ 4,136	$ (2,999)
Basic
Net income (loss) per share (in dollars per share)	$ 0.34	$ (1.54)	$ 1.90	$ (1.40)
Diluted
Net income (loss) per share (in dollars per share)	$ 0.33	$ (1.46)	$ 1.83	$ (1.32)