Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Debt and Maturities (Details)

v3.20.1
Long-Term Debt - Debt and Maturities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Total long-term debt $ 48,260 $ 10,830
Less: current portion of long-term debt (749) (3,201)
Less: debt issuance costs (2,285) (32)
Less: discounts on warrants, net   (479)
Long-term debt, net of current portion 45,226 7,118
Future minimum loan payments:    
2020 749  
2021 591  
2022 480  
2023 480  
2024 45,960  
Medium-term Notes | Term Loan Agreements    
Debt Instrument [Line Items]    
Total long-term debt 47,880 3,828
Construction Loans | Equipment Financing Agreements    
Debt Instrument [Line Items]    
Total long-term debt $ 380 752
Unsecured Debt | Promissory Notes    
Debt Instrument [Line Items]    
Total long-term debt   $ 6,250