Annual report pursuant to Section 13 and 15(d)

Long Term Debt - Debt and Maturities (Details)

v3.20.4
Long Term Debt - Debt and Maturities (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Long-term debt $ 47,508 $ 48,260
Less: current portion of long-term debt (588) (749)
Less: debt issuance costs (1,856) (2,285)
Long-term debt, net of current portion 45,064 45,226
Future minimum loan payments:    
2021 588  
2022 480  
2023 480  
2024 45,960  
Total long-term debt 47,508 48,260
Medium-term Notes | Term Loan Agreements    
Debt Instrument [Line Items]    
Long-term debt 47,400 47,880
Future minimum loan payments:    
Total long-term debt 47,400 47,880
Construction Loans | Equipment Financing Agreements    
Debt Instrument [Line Items]    
Long-term debt 108 380
Future minimum loan payments:    
Total long-term debt $ 108 $ 380