Consolidated Statement of Changes in Shareholders' Equity (Deficit) - USD ($)
$ in Thousands |
Class A common stock |
Additional Paid - in Capital |
Bus Comb Cons to be Transferred |
Accumulated Deficit |
Total |
| Balances at Dec. 31, 2014 |
$ 5
|
$ 140,124
|
$ 1,244
|
$ (146,674)
|
$ (5,301)
|
| Balances (in shares) at Dec. 31, 2014 |
4,335
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Issuance of common stock and other equity changes related to compensation |
|
784
|
|
|
784
|
| Issuance of common stock and other equity changes related to compensation (in shares) |
25
|
|
|
|
|
| Proceeds from common stock offerings and warrant exercises, net of costs |
$ 3
|
15,022
|
|
|
15,025
|
| Proceeds from common stock offerings and warrant exercises, net of costs (in shares) |
11,739
|
|
|
|
|
| Establishment of liability related to common stock warrant issuance |
|
(12,246)
|
|
|
(12,246)
|
| Adjustment to common stock warrant liability for warrants exercised/extinguished |
|
7,267
|
|
|
7,267
|
| Adjustment to common stock warrant liability for warrants exercised/extinguished (in shares) |
2,213
|
|
|
|
|
| Related party debt conversion |
|
4,238
|
|
|
4,238
|
| Related party debt conversion (in shares) |
2,147
|
|
|
|
|
| Business combination consideration |
|
1,244
|
$ (1,244)
|
|
|
| Business combination consideration (in shares) |
38
|
|
|
|
|
| Fractional shares issued in connection with reverse split (in shares) |
5
|
|
|
|
|
| Net loss |
|
|
|
(10,780)
|
(10,780)
|
| Balances at Dec. 31, 2015 |
$ 8
|
156,433
|
|
(157,454)
|
(1,013)
|
| Balances (in shares) at Dec. 31, 2015 |
20,502
|
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Issuance of common stock and other equity changes related to compensation |
|
708
|
|
|
708
|
| Proceeds from common stock offerings and warrant exercises, net of costs |
|
5,185
|
|
|
5,185
|
| Proceeds from common stock offerings and warrant exercises, net of costs (in shares) |
626,251
|
|
|
|
|
| Fair value of shares issued for convertible note and interest and preferred stock liability converted to common stock |
$ 17,308
|
21,604
|
|
|
21,604
|
| Fair value of shares issued for convertible note and interest and preferred stock liability converted to common stock (in shares) |
534,875
|
|
|
|
|
| Issuance of common stock related to line of credit |
|
167
|
|
|
167
|
| Issuance of common stock related to line of credit (in shares) |
970
|
|
|
|
|
| Adjustment to common stock warrant liability for warrants exercised/extinguished |
|
103
|
|
|
103
|
| Adjustment to common stock warrant liability for warrants exercised/extinguished (in shares) |
364
|
|
|
|
|
| Fractional shares issued in connection with reverse split (in shares) |
189
|
|
|
|
|
| Issuance of warrants in the 2016 note and preferred stock offerings |
$ 2,502
|
3,552
|
|
|
3,552
|
| Net loss |
|
|
|
(25,328)
|
(25,328)
|
| Balances at Dec. 31, 2016 |
$ 8
|
$ 187,752
|
|
$ (182,782)
|
$ 4,978
|
| Balances (in shares) at Dec. 31, 2016 |
1,183,151
|
|
|
|
|