Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Principal Balances
Total debt	$ 28,663	$ 36,132
Less amounts due within one year	(4,198)	(12,868)
Total long-term debt	24,465	23,264
Unamortized Debt Financing Costs
Total debt	108	72
Less amounts due within one year	(33)	(23)
Total long-term debt	75	49
Balance, Net of Financing Costs
Total debt	28,555	36,060
Less amounts due within one year	(4,165)	(12,845)
Total long-term debt	24,390	23,215
NG Advantage debt
Principal Balances
Total debt	26,515	25,832
Unamortized Debt Financing Costs
Total debt	108	72
Balance, Net of Financing Costs
Total debt	26,407	25,760
SG Facility
Principal Balances
Total debt	2,000	9,500
Balance, Net of Financing Costs
Total debt	2,000	9,500
Other debt
Principal Balances
Total debt	148	800
Balance, Net of Financing Costs
Total debt	$ 148	$ 800