Summary of Financial Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total	$ 9,980	$ 20,143
Less: Current maturities of financial liabilities	(9,853)	(20,084)
Less: Unamortized debt issuance costs	(127)	(59)
April 21 Funds Promissory Notes
Debt Instrument [Line Items]
Total		2,800
Paycheck Protection Program Note
Debt Instrument [Line Items]
Total		2,915
Revolving Loan Facility
Debt Instrument [Line Items]
Total	$ 9,980	$ 14,428

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 accumulated amortization, of debt issuance costs classified as current. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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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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