Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Total net amortized intangible assets	$ 955	$ 1,190
Amortization	(269)	(235)
Total net amortized intangible assets	686	955
Total net intangible assets	3,392	3,627
Total net intangible assets	3,123	3,392
NLEX [Member] | Trade Name [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Unamortized intangible assets	$ 2,437	$ 2,437	$ 2,437
Customer Network [Member] | HGP [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-Lived intangible asset, useful life	12 years	12 years
Finite-Lived intangible assets, remaining amortization period	2 years	3 years
Total net amortized intangible assets	$ 92	$ 114
Amortization	(30)	(22)
Total net amortized intangible assets	$ 62	$ 92
HGP Trade Name [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-Lived intangible asset, useful life	14 years	14 years
Finite-Lived intangible assets, remaining amortization period	4 years	5 years
Total net amortized intangible assets	$ 642	$ 746
Amortization	(129)	(104)
Total net amortized intangible assets	$ 513	$ 642
Customer Relationships [Member] | NLEX [Member]
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Finite-Lived intangible asset, useful life	7 years 7 months 6 days	7 years 7 months 6 days
Finite-Lived intangible assets, remaining amortization period	1 year	2 years
Total net amortized intangible assets	$ 221	$ 330
Amortization	(110)	(109)
Total net amortized intangible assets	$ 111	$ 221