• Filing Date: 2020-11-03
  • Form Type: 10-Q
  • Description: Quarterly report
v3.20.2
Going Concern (Narrative) (Details) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Accumulated deficit $ 391,932,000 $ 387,570,000
Cash and cash equivalents 11,254,000 $ 9,426,000
2019 Solar Loan Agreement    
Debt Instrument [Line Items]    
Debt instrument, face amount $ 45,000,000