Segment Information - Financial information for segments and reconciliation of Total of Reportable segments' income/(loss)from operations (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Mar. 31, 2019 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
| Contract revenue: | ||||||
| Consolidated contract revenue | $ 2,294 | $ 3,568 | $ 4,456 | $ 6,392 | ||
| Operating loss: | ||||||
| Operating loss | (3,352) | (4,209) | (7,854) | (8,600) | ||
| Reconciliation of consolidated loss from operations to consolidated net loss: | ||||||
| Change in fair value of derivative liabilities and loss on debt extinguishment | (1,502) | (3,073) | (1,445) | (3,046) | ||
| Amortization of debt discount and deferred loan costs | (234) | (1,435) | (287) | (1,435) | ||
| Other income | 12 | 955 | 20 | 985 | ||
| Net loss | (5,076) | $ (4,490) | (7,762) | $ (4,334) | (9,566) | (12,096) |
| Solar Division | ||||||
| Contract revenue: | ||||||
| Consolidated contract revenue | 2,188 | 3,568 | 4,248 | 6,381 | ||
| Operating loss: | ||||||
| Operating loss | (532) | (571) | (2,150) | (1,996) | ||
| POWERHOUSE | ||||||
| Contract revenue: | ||||||
| Consolidated contract revenue | 106 | 0 | 171 | 0 | ||
| Operating loss: | ||||||
| Operating loss | (1,004) | (57) | (1,465) | (108) | ||
| Other | ||||||
| Contract revenue: | ||||||
| Consolidated contract revenue | 0 | 0 | 37 | 11 | ||
| Operating loss: | ||||||
| Operating loss | $ (1,816) | $ (3,581) | $ (4,239) | $ (6,496) | ||