Statement of Stockholders' Equity (Deficit) - USD ($) shares in Thousands, $ in Thousands |
Common Stock |
Additional Paid-In Capital |
Subscription Receivable |
Accumulated Deficit |
Total |
| Beginning balance, shares at Dec. 31, 2014 |
1,233
|
|
|
|
|
| Beginning balance, value at Dec. 31, 2014 |
$ 1
|
$ 66,759
|
$ (188)
|
$ (73,874)
|
$ (7,302)
|
| Issuance of common stock for the settlement of options and warrants, shares issued |
384
|
|
|
|
|
| Issuance of common stock for the settlement of options and warrants, value |
$ 1
|
2,089
|
|
|
2,090
|
| Stock-based compensation |
|
431
|
|
|
431
|
| Issuance of common stock warrants |
|
1,173
|
|
|
1,173
|
| Net loss |
|
|
|
(9,513)
|
(9,513)
|
| Ending balance, shares at Dec. 31, 2015 |
1,617
|
|
|
|
|
| Ending balance, value at Dec. 31, 2015 |
$ 2
|
70,452
|
(188)
|
(83,387)
|
(13,121)
|
| Sale of stock, shares |
3,680
|
|
|
|
|
| Sale of stock, value |
$ 4
|
27,596
|
|
|
27,600
|
| Conversion of secured notes, shares |
6,265
|
|
|
|
|
| Conversion of secured notes, value |
$ 6
|
23,486
|
|
|
23,492
|
| Compensation in exchange for forgiveness of subscription receivable |
|
|
188
|
|
188
|
| Stock-based compensation, shares |
462
|
|
|
|
|
| Stock-based compensation |
|
2,468
|
|
|
2,468
|
| Stock option exercises, shares |
1
|
|
|
|
|
| Stock option exercises, value |
|
4
|
|
|
4
|
| Issuance of common stock warrants |
|
1,249
|
|
|
1,249
|
| Debt offering costs |
|
(3,422)
|
|
|
(3,422)
|
| Net loss |
|
|
|
(12,610)
|
(12,610)
|
| Ending balance, shares at Dec. 31, 2016 |
12,025
|
|
|
|
|
| Ending balance, value at Dec. 31, 2016 |
$ 12
|
$ 121,833
|
$ 0
|
$ (95,997)
|
$ 25,848
|