Acquisition (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Jun. 22, 2015	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Aggregate Fair Value of Assets Acquired and the Liabilities Assumed [Abstract]
Goodwill		$ 8,928		$ 8,928
Unaudited Pro-forma Results [Abstract]
Net revenues			$ 7,557
Net loss			$ (10,157)
Net loss per basic and diluted share: (in dollars per share)			$ (1.57)
Shares used in calculating net loss per basic and diluted share: (in shares)			6,471,906
Core Technology [Member]
Business Acquisition [Line Items]
Estimated useful life		10 years
Product Technology [Member]
Business Acquisition [Line Items]
Estimated useful life		5 years
Trade Names [Member]
Business Acquisition [Line Items]
Estimated useful life		10 years
Customer Relationships [Member]
Business Acquisition [Line Items]
Estimated useful life		10 years
XTRAC and VTRAC [Member]
Business Acquisition [Line Items]
Acquisition price	$ 42,528
Aggregate Fair Value of Assets Acquired and the Liabilities Assumed [Abstract]
Current assets	7,233
Property, plant and equipment	14,340
Identifiable intangible assets	16,100
Other assets	45
Total assets assumed	37,718
Current liabilities	(3,945)
Note payable	(57)
Other long term liabilities	(116)
Total liabilities assumed	(4,118)
Net assets acquired	$ 33,600
Goodwill		$ 8,928