CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands |
Total |
Preferred Stock |
Common Stock |
Additional Paid-in Capital |
Retained Earnings |
| Beginning balance (in shares) at Dec. 31, 2013 |
|
0
|
17,684
|
|
|
| Beginning balance, amount at Dec. 31, 2013 |
$ 19,071
|
$ 0
|
$ 18
|
$ 28,687
|
$ (9,634)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Options exercised (in shares) |
|
|
107
|
|
|
| Options exercised |
232
|
|
|
232
|
|
| Warrants exercised (in shares) |
|
|
112
|
|
|
| Warrants exercised |
237
|
|
|
237
|
|
| Stock based compensation |
388
|
|
|
388
|
|
| Stock swap to acquire options and warrants (in shares) |
|
|
(51)
|
|
|
| Stock swap to acquire options and warrants |
(210)
|
|
|
(210)
|
|
| Accretion on convertible preferred stock |
(932)
|
|
|
|
(932)
|
| Net loss |
(17,282)
|
|
|
|
(17,282)
|
| Ending balance (in shares) at Dec. 31, 2014 |
|
0
|
17,852
|
|
|
| Ending balance, amount at Dec. 31, 2014 |
1,504
|
$ 0
|
$ 18
|
29,334
|
(27,848)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Options exercised (in shares) |
|
|
98
|
|
|
| Options exercised |
220
|
|
|
220
|
|
| Warrants exercised (in shares) |
|
|
739
|
|
|
| Warrants exercised |
1,519
|
|
|
1,519
|
|
| Issuance of common stock (in shares) |
|
|
5,219
|
|
|
| Issuance of common stock |
11,531
|
|
$ 5
|
11,526
|
|
| Conversion of Series A Preferred stock and common warrants to Series B preferred stock (in shares) |
|
3,588
|
|
|
|
| Conversion of Series A preferred stock and common warrants to Series B preferred stock |
13,920
|
$ 4
|
|
(40)
|
13,956
|
| Conversion of Series B convertible preferred to common stock (in shares) |
|
(1,612)
|
3,225
|
|
|
| Conversion of Series B convertible preferred to common stock |
0
|
$ (2)
|
$ 4
|
(2)
|
|
| Stock based compensation |
575
|
|
|
575
|
|
| Stock swap to acquire options and warrants (in shares) |
|
|
(81)
|
|
|
| Stock swap to acquire options and warrants |
(273)
|
|
|
(273)
|
|
| Accretion on convertible preferred stock |
(222)
|
|
|
|
(222)
|
| Net loss |
(5,370)
|
|
|
|
(5,370)
|
| Ending balance (in shares) at Dec. 31, 2015 |
|
1,976
|
27,052
|
|
|
| Ending balance, amount at Dec. 31, 2015 |
23,404
|
$ 2
|
$ 27
|
42,859
|
(19,484)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Options exercised (in shares) |
|
|
36
|
|
|
| Options exercised |
130
|
|
|
130
|
|
| Warrants exercised (in shares) |
|
|
293
|
|
|
| Warrants exercised |
698
|
|
|
698
|
|
| Issuance of common stock (in shares) |
|
|
1,625
|
|
|
| Issuance of common stock |
5,830
|
|
$ 2
|
5,828
|
|
| Conversion of Series B convertible preferred to common stock (in shares) |
|
(1,000)
|
2,000
|
|
|
| Conversion of Series B convertible preferred to common stock |
0
|
$ (1)
|
$ 2
|
(1)
|
|
| Stock based compensation |
809
|
|
|
809
|
|
| Stock swap to acquire options and warrants (in shares) |
|
|
(146)
|
|
|
| Stock swap to acquire options and warrants |
(698)
|
|
|
(698)
|
|
| Net loss |
(3,950)
|
|
|
|
(3,950)
|
| Ending balance (in shares) at Dec. 31, 2016 |
|
976
|
30,860
|
|
|
| Ending balance, amount at Dec. 31, 2016 |
$ 26,223
|
$ 1
|
$ 31
|
$ 49,625
|
$ (23,434)
|