Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Total net amortized intangible assets	$ 1,440
Amortization	(62)	$ (100)
Total net amortized intangible assets	1,378
Total net intangible assets	3,877
Total net intangible assets	3,815
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	(7)
Total net amortized intangible assets	129
HGP Trade Name [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Total net amortized intangible assets	850
Amortization	(26)
Total net amortized intangible assets	824
Customer Relationships [Member] | NLEX [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Total net amortized intangible assets	440
Amortization	(27)
Total net amortized intangible assets	413
NLEX's Website [Member] | NLEX [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Total net amortized intangible assets	14
Amortization	(2)
Total net amortized intangible assets	$ 12