Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Future Amortization Expense, Year One	$ 868
Future Amortization Expense, Year Two	761
Future Amortization Expense, Year Three	601
Future Amortization Expense, Year Four	510
Future Amortization Expense, Year Five	488
Accumulated Amortization	4,821	$ 3,904
Intangible Assets Gross	14,217	13,840
Trade Secrets [Member]
Accumulated Amortization	1,765	1,405
Intangible Assets Gross	3,390	3,390
Patents [Member]
Accumulated Amortization	2,274	1,809
Intangible Assets Gross	5,406	5,043
Noncompete Agreements [Member]
Accumulated Amortization	782	690
Intangible Assets Gross	839	839
Trade name infinite lived [Member]
Accumulated Amortization	0	0
Intangible Assets Gross	$ 4,582	$ 4,568
Minimum [Member] | Trade Secrets [Member]
Finite-Lived Intangible Asset, Useful Life	2 years
Minimum [Member] | Patents [Member]
Finite-Lived Intangible Asset, Useful Life	4 years
Minimum [Member] | Noncompete Agreements [Member]
Finite-Lived Intangible Asset, Useful Life	3 years
Maximum [Member] | Trade Secrets [Member]
Finite-Lived Intangible Asset, Useful Life	20 years
Maximum [Member] | Patents [Member]
Finite-Lived Intangible Asset, Useful Life	10 years
Maximum [Member] | Noncompete Agreements [Member]
Finite-Lived Intangible Asset, Useful Life	5 years