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Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Disclosure [Abstract]
Unsecured promissory note	$ 1,080	$ 1,080
Secured term note payable - related party	1,077	1,077
Secured promissory note - related party	4,438	5,000
Insurance and other notes payable	418	714
Less: amounts due within one year	(4,253)	(4,463)
Total long-term debt	$ 2,760	$ 3,408

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Insurance Liabilities

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- Definition

Long-term Debt and Notes Payable, Excluding Current Maturities

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- Definition

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The amount for notes payable (written promise to pay), due to related parties.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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