Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Total net amortized intangible assets	$ 1,440
Amortization	(123)	$ (100)
Total net amortized intangible assets	1,317
Total net intangible assets	3,877
Total net intangible assets	3,754
NLEX [Member] | Trade Name [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Unamortized intangible assets	2,437		$ 2,437
Customer Network [Member] | HGP [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Total net amortized intangible assets	136
Amortization	(12)
Total net amortized intangible assets	124
HGP Trade Name [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Total net amortized intangible assets	850
Amortization	(52)
Total net amortized intangible assets	798
Customer Relationships [Member] | NLEX [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Total net amortized intangible assets	440
Amortization	(54)
Total net amortized intangible assets	386
NLEX's Website [Member] | NLEX [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Total net amortized intangible assets	14
Amortization	(5)
Total net amortized intangible assets	$ 9