Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Gross Carrying Amount	$ 4,963	$ 4,897
Accumulated Amortization	(3,340)	(3,059)
Net Carrying Amount	1,623	1,838
Patent [Member]
Gross Carrying Amount	643	577
Accumulated Amortization	(298)	(274)
Net Carrying Amount	$ 345	303
Patent [Member] \| Minimum [Member]
Useful Lives (Years)	3 years
Patent [Member] \| Maximum [Member]
Useful Lives (Years)	17 years
Software [Member]
Gross Carrying Amount	$ 405	405
Accumulated Amortization	(396)	(383)
Net Carrying Amount	$ 9	22
Useful Lives (Years)	3 years
Customer Relationships [Member]
Gross Carrying Amount	$ 3,370	3,370
Accumulated Amortization	(2,178)	(1,974)
Net Carrying Amount	$ 1,192	1,396
Useful Lives (Years)	12 years
Permit [Member]
Gross Carrying Amount	$ 545	545
Accumulated Amortization	(468)	(428)
Net Carrying Amount	$ 77	$ 117
Useful Lives (Years)	10 years