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Segment Reporting - Schedule of Segment Reporting Information (Details) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Net revenues	$ 105,426	$ 73,459
Assets of disposal group including discontinued operation including not held for sale	103	221
Debt issuance costs	105	340
Financed portion amount in the purchase of capital expenditure	883	393
Long-lived asset (net)	875	1,065
Perma-Fix [Member]
Long-lived asset (net)	33	41
Sales Revenue [Member] | Customer Concentration Risk [Member] | Domestic and Foreign Government [Member]
Net revenues	$ 96,582	$ 59,985
Concentration risk, percentage	91.60%	81.70%

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