Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt - Schedule of Long-term Debt (Details) - USD ($)	Sep. 30, 2021	Jul. 28, 2021	Dec. 31, 2020	Apr. 10, 2020
Debt Instrument [Line Items]
Less: current portion of long-term debt	$ 0		$ 2,014,000
PPP Loan
Debt Instrument [Line Items]
PPP Loan Principal	0	$ 2,417,000	2,417,000	$ 2,417,000
Less: current portion of long-term debt	0		2,014,000
Long-term debt, net of current portion	$ 0		$ 403,000