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Debt - Schedule of Debt (Details) - USD ($)	Dec. 16, 2020	Nov. 30, 2020	Aug. 26, 2020	Apr. 21, 2020
Long-Term Debt
Total credit facility debt			$ 56,583,000
Unamortized debt issue costs			(1,410,000)
Unamortized debt discount			(1,055,000)
Total long-term debt, less unamortized debt issuance costs			54,118,000
Current portion of credit facility debt			0
Long-term debt, less current portion			54,118,000
2018 Credit Agreement
Long-Term Debt
Total credit facility debt	$ 46,583,000		46,583,000
2018 Credit Agreement \| Medium-term Notes
Long-Term Debt
Total credit facility debt	36,583,000		36,583,000
2018 Credit Agreement \| Revolver
Long-Term Debt
Total credit facility debt	10,000,000		10,000,000
PPP Loan \| Loans Payable
Long-Term Debt
Total credit facility debt	$ 10,000,000	$ 10,000,000.0	$ 10,000,000	$ 10,000,000.0