11. Stockholders' Equity (Tables)
|
12 Months Ended |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Summary of option activity |
| Shares approved for issuance at plan inception |
|
|
2,048,189 |
|
| Options granted in 2014 |
|
|
(587,830 |
) |
| Options cancelled in 2014 |
|
|
4,096 |
|
| Restricted shares issued in 2014 |
|
|
(86,024 |
) |
| Balance at December 31, 2014 |
|
|
1,378,431 |
|
| Options granted in 2015 |
|
|
(364,578 |
) |
| Options cancelled in 2015 |
|
|
92,168 |
|
| Plan cancellation |
|
|
(1,106,021 |
) |
| Balance at December 31, 2015 |
|
|
|
|
|
|
| Schedule of stock option activity by exercise price |
| Options
outstanding |
|
|
Options
vested and exercisable |
|
| Exercise
price |
|
|
Number
outstanding |
|
|
Weighted
average remaining contractual life (years) |
|
|
Weighted
average exercise |
|
|
Aggregate
intrinsic value |
|
|
Number
vested |
|
|
Weighted
average exercise |
|
|
Aggregate
intrinsic value |
|
|
$6.10 |
|
|
|
1,411,094 |
|
|
|
2.28 |
|
|
|
$6.10 |
|
|
$ |
|
|
|
|
1,411,094 |
|
|
|
$6.10 |
|
|
|
|
|
|
$9.76 |
|
|
|
130,874 |
|
|
|
9.54 |
|
|
|
$9.76 |
|
|
|
|
|
|
|
130,874 |
|
|
|
$9.76 |
|
|
|
|
|
| |
|
|
|
|
1,541,968 |
|
|
|
|
|
|
|
$6.41 |
|
|
$ |
|
|
|
|
1,541,968 |
|
|
|
$6.41 |
|
|
$ |
|
|
|
|
| Warrant activity |
| |
|
Number
of warrants |
|
|
Weighted
average exercise price |
|
|
Weighted
average remaining contractual term (years) |
|
|
Aggregate
intrinsic value |
|
| Outstanding
and Exercisable at December 31, 2014 |
|
|
122,891 |
|
|
$ |
8.14 |
|
|
|
|
|
|
$ |
|
|
| Outstanding
and Exercisable at December 31, 2015 |
|
|
6,898,560 |
|
|
$ |
1.83 |
|
|
|
5.00 |
|
|
$ |
|
|
|
|
| Basic and Diluted Income Per Share |
| |
|
Year Ended December
31, |
|
| |
|
2015 |
|
|
2014 |
|
| Basic: |
|
|
|
|
|
|
|
|
| Numerator- net
income (loss) available to common stockholders |
|
$ |
(37,589,694 |
) |
|
|
2,810,032 |
|
| Denominator - weighted-average
shares outstanding |
|
|
12,456,486 |
|
|
|
12,247,978 |
|
| Net
income (loss) per share -Basic |
|
$ |
(3.02 |
) |
|
$ |
0.23 |
|
| Diluted: |
|
|
|
|
|
|
|
|
| Numerator: |
|
|
|
|
|
|
|
|
| Net income (loss) available
to common stockholders |
|
$ |
(37,589,694 |
) |
|
$ |
2,810,032 |
|
| Interest expense on convertible
debt, net of taxes |
|
|
|
|
|
|
14,436 |
|
| |
|
|
(37,589,694 |
) |
|
|
2,824,468 |
|
| Denominator: |
|
|
|
|
|
|
|
|
| Weighted-average shares
outstanding |
|
|
12,465,486 |
|
|
|
12,247,978 |
|
| Weighted-average equivalent
shares options |
|
|
|
|
|
|
249,952 |
|
| Weighted-average equivalent
shares from convertible debt |
|
|
|
|
|
|
91,031 |
|
| Weighted-average equivalent
shares from Series C convertible preferred stock |
|
|
|
|
|
|
|
|
| Weighted-average equivalent
shares from Series D convertible preferred stock |
|
|
|
|
|
|
64,644 |
|
| Weighted-average equivalent
shares from Series E convertible preferred stock |
|
|
|
|
|
|
14,253 |
|
| |
|
|
12,465,486 |
|
|
|
12,667,858 |
|
| Net
income (loss) per share - Diluted |
|
$ |
(3.02 |
) |
|
$ |
0.22 |
|
|
|
| Antidilutive Securities |
| |
|
December
31 |
|
| |
|
2015 |
|
|
2014 |
|
| Stock options outstanding |
|
|
1,822,675 |
|
|
|
6,042,157 |
|
| Warrants outstanding |
|
|
6,898,560 |
|
|
|
|
|
| Convertible debt |
|
|
1,074,402 |
|
|
|
|
|
| Convertible preferred stock |
|
|
11,540,397 |
|
|
|
|
|
| |
|
|
21,336,034 |
|
|
|
6,042,157 |
|
|
|
| Granted to employee [Member] |
|
|
| Option assumptions |
|
| Stock price |
|
$6.10 |
| Expected term |
|
1 year |
| Expected volatility |
|
24.43% |
| Risk free interest rate |
|
0.30% |
| Dividend yield |
|
0 |
|
| Granted to various employees [Member] |
|
|
| Option assumptions |
|
| Stock price |
|
$6.10 |
| Expected term |
|
5.375 years |
| Expected volatility |
|
27.72% |
| Risk free interest rate |
|
1.46% |
| Dividend yield |
|
0 |
|
| Granted to director [Member] |
|
|
| Option assumptions |
|
| Stock price |
|
$6.10 |
| Expected term |
|
2 years |
| Expected volatility |
|
24.43% |
| Risk free interest rate |
|
0.43% |
| Dividend yield |
|
0 |
|