Intangible Assets- Schedule of Goodwill (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2014	Dec. 31, 2012
Finite Lived Intangible Assets [Line Items]
Goodwill	$ 7,446	$ 5,585
HGP [Member]
Finite Lived Intangible Assets [Line Items]
Goodwill	2,040	2,040		$ 2,000
NLEX [Member]
Finite Lived Intangible Assets [Line Items]
Goodwill	3,545	3,545	$ 3,500
ALT [Member]
Finite Lived Intangible Assets [Line Items]
Goodwill	$ 1,861	$ 0