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NOTES PAYABLE - Summary of future principal payments (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Long-term Debt, Fiscal Year Maturity
April 1, 2023 through December 31, 2023	$ 4,000
2024	5,333
Future principal payments	9,333
Less current portion	(5,333)
Less debt issuance costs	(36)
Long-term debt, net of debt issuance costs	$ 3,964

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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 of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in remainder of current fiscal year.

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