Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Debt and Maturities (Details)

v3.19.3
Long-Term Debt - Debt and Maturities (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Long-term debt $ 14,038 $ 10,830
Less: current portion of long-term debt (1,076) (3,201)
Less: debt issuance costs (707) (32)
Less: discounts on warrants, net   (479)
Long-term debt, net of current portion 12,255 7,118
Revolving Credit Facility    
Debt Instrument [Line Items]    
Long-term debt 3,750  
Medium-term Notes | Term Loan Agreements    
Debt Instrument [Line Items]    
Long-term debt 9,813 3,828
Construction Loans | Equipment Financing Agreements    
Debt Instrument [Line Items]    
Long-term debt $ 475 752
Unsecured Debt | Promissory Notes    
Debt Instrument [Line Items]    
Long-term debt   $ 6,250