Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt and CARES Act Loans - Debt and Maturities (Details)

v3.21.2
Long-Term Debt and CARES Act Loans - Debt and Maturities (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Long-term debt $ 47,187 $ 47,508
Less: current portion of long-term debt (507) (588)
Less: debt issuance costs (1,632) (1,856)
Long-term debt, net of current portion 45,048 45,064
Future minimum loan payments:    
Long-term debt 47,187 47,508
Medium-term Notes | Term Loan Agreements    
Debt Instrument [Line Items]    
Long-term debt 47,160 47,400
Future minimum loan payments:    
Long-term debt 47,160 47,400
Construction Loans | Equipment Financing Agreements    
Debt Instrument [Line Items]    
Long-term debt 27 108
Future minimum loan payments:    
Long-term debt $ 27 $ 108