Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of intangible assets that are carried at cost less accumulated amortization
Cost	$ 2,703	$ 2,703
Accumulated Amortization	1,262	1,091
Net Amount	1,441	1,612
Customer relationships [Member]
Schedule of intangible assets that are carried at cost less accumulated amortization
Cost	1,365	1,365
Accumulated Amortization	808	671
Net Amount	557	694
Proprietary technology [Member]
Schedule of intangible assets that are carried at cost less accumulated amortization
Cost	349	349
Accumulated Amortization	206	172
Net Amount	143	177
Non-compete agreements [Member]
Schedule of intangible assets that are carried at cost less accumulated amortization
Cost	248	248
Accumulated Amortization	248	248
Net Amount
Non-Amortized Trade name [Member]
Schedule of intangible assets that are carried at cost less accumulated amortization
Cost	741	741
Accumulated Amortization
Net Amount	741	741
Amortized intangible assets [Member]
Schedule of intangible assets that are carried at cost less accumulated amortization
Cost	1,962	1,962
Accumulated Amortization	1,262	1,091
Net Amount	$ 700	$ 871