Stockholders' Equity (Tables)
|
3 Months Ended |
12 Months Ended |
Mar. 31, 2017 |
Dec. 31, 2016 |
Stockholders' deficit: |
|
|
Schedule of equity compensation plans |
Stock
option activity under all of the Company’s equity compensation plans during the three months ended March 31, 2017 is summarized
below:
|
|
|
Shares |
|
|
Weighted
- Average Exercise Price |
|
Outstanding
at December 31, 2016 |
|
|
|
337,441 |
|
|
$ |
42.07 |
|
Granted |
|
|
|
2,000 |
|
|
|
2.55 |
|
Forfeited |
|
|
|
(23,875 |
) |
|
|
45.53 |
|
Outstanding at March
31, 2017 |
|
|
|
315,566 |
|
|
$ |
42.33 |
|
|
Activity
with respect to stock options issued by the Company is summarized as follows:
|
|
Options
Outstanding |
|
|
Options
Exercisable |
|
|
Range
of
Exercise
Prices
|
|
|
Weighted-average
Exercise price per share |
|
|
Intrinsic
Value
(1)
|
Outstanding at January 1,
2015 |
|
|
258,583 |
|
|
|
|
|
|
$ |
32.00 |
|
|
|
- |
|
|
$ |
385.60 |
|
|
$ |
54.38 |
|
|
$ 4,800 |
Exercisable at January
1, 2015 |
|
|
|
|
|
|
140,687 |
|
|
$ |
40.00 |
|
|
|
|
|
|
$ |
385.60 |
|
|
$ |
62.27 |
|
|
600 |
Activity during the year ended December 31,
2015 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Granted |
|
|
61,912 |
|
|
|
|
|
|
$ |
29.60 |
|
|
|
- |
|
|
$ |
42.40 |
|
|
$ |
32.80 |
|
|
|
Exercised |
|
|
- |
|
|
|
|
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
Cancelled
or forfeited |
|
|
(22,212 |
) |
|
|
|
|
|
$ |
32.00 |
|
|
|
- |
|
|
|
128.00 |
|
|
$ |
59.20 |
|
|
|
Outstanding at December 31, 2015 |
|
|
298,283 |
|
|
|
|
|
|
$ |
29.60 |
|
|
|
|
|
|
$ |
385.60 |
|
|
$ |
48.73 |
|
|
- |
Exercisable at December 31, 2015 |
|
|
|
|
|
|
179,216 |
|
|
$ |
29.60 |
|
|
|
|
|
|
$ |
385.60 |
|
|
$ |
56.40 |
|
|
- |
Activity during the year ended December 31,
2016 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Granted |
|
|
53,750 |
|
|
|
|
|
|
$ |
5.00 |
|
|
|
|
|
|
$ |
12.40 |
|
|
$ |
6.40 |
|
|
|
Exercised |
|
|
- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cancelled
or forfeited |
|
|
(14,592 |
) |
|
|
|
|
|
$ |
5.00 |
|
|
|
|
|
|
$ |
385.60 |
|
|
$ |
12.67 |
|
|
|
Outstanding at December
31, 2016 |
|
|
337,441 |
|
|
|
|
|
|
$ |
5.00 |
|
|
|
|
|
|
$ |
385.60 |
|
|
$ |
42.07 |
|
|
- |
Exercisable at December
31, 2016 |
|
|
|
|
|
|
245,989 |
|
|
$ |
5.00 |
|
|
|
|
|
|
$ |
385.60 |
|
|
$ |
38.71 |
|
|
- |
|
(1) |
Intrinsic
value is calculated as the estimated fair value of the Company’s stock at the end of the related period less the option
exercise price of in-the-money options. |
|
Schedule of stock options (contractual life expressed in years) |
|
The
following table summarizes information about stock options at December 31, 2016 (contractual life expressed in years):
|
|
Options
Outstanding |
|
|
Options
Exercisable |
|
Range
of Exercise Prices |
|
Number Outstanding
|
|
|
Weighted
- Average Remaining Contractual Life |
|
|
Weighted
-
Average
Exercise
Price
|
|
|
Number
Exercisable |
|
|
Weighted
- Average Remaining Contractual Life |
|
|
Weighted
-
Average
Exercise
Price
|
|
$5.00 |
- |
$45.20 |
|
|
247,469 |
|
|
|
7.67 |
|
|
$ |
32.48 |
|
|
|
156,351 |
|
|
|
6.91 |
|
|
$ |
38.71 |
|
$46.40 |
- |
$83.60 |
|
|
88,892 |
|
|
|
5.16 |
|
|
$ |
68.09 |
|
|
|
88,558 |
|
|
|
5.15 |
|
|
$ |
68.16 |
|
$128.00 |
- |
$385.60 |
|
|
1,080 |
|
|
|
1.61 |
|
|
$ |
322.73 |
|
|
|
1,080 |
|
|
|
1.61 |
|
|
$ |
322.73 |
|
|
|
|
337,441 |
|
|
|
7.67 |
|
|
$ |
42.07 |
|
|
|
245,989 |
|
|
|
6.26 |
|
|
|
38.71 |
|
|
Schedule of company's nonvested stock options during the years |
|
Company’s
nonvested stock options during the years ended December 31, 2016 and 2015 is presented below:
Nonvested Stock
Options |
|
Shares |
|
|
Weighted
- Average Grant Date Fair Value |
|
Nonvested January 1, 2015 |
|
|
117,895 |
|
|
$ |
20.80 |
|
Activity during the year ended December 31,
2015 |
|
|
|
|
|
|
|
|
Granted |
|
|
61,912 |
|
|
$ |
18.77 |
|
Forfeited |
|
|
(2,562 |
) |
|
$ |
23.76 |
|
Vested |
|
|
(58,178 |
) |
|
$ |
21.13 |
|
Nonvested December 31, 2015 |
|
|
119,067 |
|
|
$ |
18.77 |
|
Activity during the year ended December 31,
2016 |
|
|
|
|
|
|
|
|
Granted |
|
|
53,750 |
|
|
$ |
3.01 |
|
Forfeited |
|
|
(6,918 |
) |
|
$ |
28.66 |
|
Vested |
|
|
(74,447 |
) |
|
$ |
18.16 |
|
Nonvested December
31, 2016 |
|
|
91,452 |
|
|
$ |
10.53 |
|
|
Schedule of share-based compensation expense |
The
Company records share-based compensation expense on a straight-line basis over the related vesting period. For the three months
ended March 31, 2017 and 2016, share-based compensation expense related to options was:
Three
Months Ended March 31, |
2017 |
|
2016 |
|
$ |
206,896 |
|
$ |
260,149 |
|
For
the years ended December 31, 2016 and 2015, share-based compensation expense related to options was:
|
|
|
|
|
|
Year
Ended December 31, |
|
2016 |
|
2015 |
|
$ |
959,585 |
|
$ |
1,682,063 |
|
|
Schedule of assumptions used in calculating the fair value under the Black-Scholes option-pricing model |
The
estimated grant date fair values of options granted during the three months ended March 31, 2017 were calculated using the Black-Scholes
valuation model, based on the following assumptions:
Dividend yield |
|
|
0% |
|
Expected volatility |
|
|
51.79% |
|
Risk free interest rates |
|
|
2.11% |
|
Expected lives (in years) |
|
|
6.0 |
|
|
The
assumptions used in calculating the fair value under the Black-Scholes option-pricing model are as follows:
|
|
Years
Ended December 31, |
|
|
|
2016 |
|
|
2015 |
|
Dividend
yield |
|
|
0% |
|
|
|
0% |
|
Expected Volatility |
|
|
47.47% to 50.69% |
|
|
|
46.67% to 47.93% |
|
Risk free Interest
rates |
|
|
1.23% to 1.39% |
|
|
|
1.48% to 1.80% |
|
Expected lives (in
years) |
|
|
6.0 |
|
|
|
6.0 |
|
|
Schedule of common stock warrant activity |
Warrants
have generally been issued for terms of up to five years. Common stock warrant activity for the three months ended March 31, 2017
was as follows:
|
|
|
Shares |
|
|
Weighted
- Average Exercise Price |
|
Outstanding
at December 31, 2016 |
|
|
|
1,991,293 |
|
|
$ |
13.00 |
|
Issued |
|
|
|
- |
|
|
|
- |
|
Exercised |
|
|
|
- |
|
|
|
- |
|
Terminated |
|
|
|
(57,720 |
) |
|
|
38.43 |
|
Outstanding at March
31, 2017 |
|
|
|
1,933,573 |
|
|
$ |
12.71 |
|
|
Warrants
have generally been issued in connection with financing transactions and for terms of up to five years. Common stock warrant activity
for the years ended December 31, 2016 and 2015 is as follows:
|
|
|
Shares |
|
|
Weighted
- Average Exercise Price |
|
Outstanding
at January 1, 2015 |
|
|
|
518,978 |
|
|
$ |
32.13 |
|
Activity during the
year ended December 31, 2015 |
|
|
|
|
|
|
|
|
|
Issued |
|
|
|
327,060 |
|
|
$ |
18.12 |
|
Terminated |
|
|
|
(781 |
) |
|
$ |
320.00 |
|
Outstanding at December
31, 2015 |
|
|
|
845,257 |
|
|
$ |
25.67 |
(1) |
Activity during the
year ended December 31, 2016 |
|
|
|
|
|
|
|
|
|
Issued |
|
|
|
1,208,845 |
|
|
$ |
6.23 |
|
Exercised |
|
|
|
(15,625 |
) |
|
$ |
5.00 |
|
Terminated |
|
|
|
(47,184 |
) |
|
$ |
14.77 |
|
Outstanding at December
31, 2016 |
|
|
|
1,991,293 |
|
|
$ |
13.00 |
(2) |
|
(1) |
The
weighted-average exercise price reflects exercise price adjustments triggered by the 2015 PIPE. |
|
(2)
|
The weighted-average exercise price reflects
exercise price adjustments triggered by the 2016 Purchase Agreement and the 2016 PIPE. |
|
Schedule of information regarding outstanding warrants |
|
Information
regarding outstanding warrants at December 31, 2016 is as follows (contractual life expressed in years):
Exercise
Price
|
|
|
Number
Outstanding |
|
|
Weighted
- Average Remaining
Contractual Life
|
|
|
Intrinsic
Value
(1)
|
|
$ |
1.83 |
|
|
|
1,540 |
|
|
|
3.96 |
|
|
$ |
1,648 |
|
|
5.00 |
|
|
|
28,750 |
|
|
|
1.07 |
|
|
|
- |
|
|
5.50 |
|
|
|
1,129,330 |
|
|
|
4.67 |
|
|
|
- |
|
|
12.80 |
|
|
|
70,627 |
|
|
|
1.07 |
|
|
|
- |
|
|
16.23 |
|
|
|
242,021 |
|
|
|
3.96 |
|
|
|
- |
|
|
21.10 |
|
|
|
152,084 |
|
|
|
3.96 |
|
|
|
- |
|
|
24.00 |
|
|
|
11,471 |
|
|
|
0.15 |
|
|
|
- |
|
|
30.00 |
|
|
|
45,999 |
|
|
|
0.13 |
|
|
|
- |
|
|
34.32 |
|
|
|
185,779 |
|
|
|
2.98 |
|
|
|
- |
|
|
36.00 |
|
|
|
68,155 |
|
|
|
0.50 |
|
|
|
- |
|
|
38.80 |
|
|
|
8,583 |
|
|
|
0.50 |
|
|
|
- |
|
|
40.00 |
|
|
|
34,875 |
|
|
|
0.35 |
|
|
|
- |
|
|
70.00 |
|
|
|
12,079 |
|
|
|
2.23 |
|
|
|
- |
|
|
|
|
|
|
1,991,293 |
|
|
|
3.81 |
|
|
$ |
1,648 |
|
|
(1) |
Intrinsic
value is calculated as the estimated fair value of the Company’s stock at December 31, 2016 less the warrant exercise
price of in-the-money warrants. |
|