Notes Payable and Convertible Notes - Summary of Classification of Notes Payable and Convertible Notes (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt	$ 65,020	$ 67,015	$ 87,989
Less current portion	(6,012)	(5,024)
Long term portion	59,008	61,991
Gotham Green Partners LLC
Debt Instrument [Line Items]
Long-term debt			35,607
LI Lending, LLC
Debt Instrument [Line Items]
Long-term debt	45,704	45,362	44,289
Long term portion	45,704	45,362
Convertible Notes
Debt Instrument [Line Items]
Long-term debt		2,855
Long term portion		2,855
Convertible Notes (Swap)
Debt Instrument [Line Items]
Long-term debt	11,466	11,867
Long term portion	11,466	11,867
Other Loans
Debt Instrument [Line Items]
Long-term debt	7,850	6,931	$ 8,093
Less current portion	(6,012)	(5,024)
Long term portion	$ 1,838	$ 1,907

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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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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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