Stockholders’ Equity (Tables)
|
6 Months Ended |
Jun. 30, 2016 |
|---|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Stock Option Activity |
|
|
|
|
|
|
|
|
|
|
|
Options
|
|
Outstanding at December 31, 2014
|
|
5,382,923
|
|
Granted
|
|
3,348,000
|
|
Exercised
|
|
-
|
|
Canceled/forfeited/expired
|
|
(3,687,695)
|
|
Outstanding at December 31, 2015
|
|
5,043,228
|
|
Granted
|
|
925,500
|
|
Exercised
|
|
-
|
|
Canceled/forfeited/expired
|
|
(583,051)
|
|
Outstanding at June 30, 2016
|
|
5,385,677
|
|
|
|
|
|
| Stock-Based Compensation Expense |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Three Months Ended
|
|
Six Months Ended
|
|
|
|
June 30,
|
|
June 30,
|
|
|
|
2016
|
|
2015
|
|
2016
|
|
2015
|
|
General and administrative
|
|
$
|
232,003
|
|
$
|
219,798
|
|
$
|
485,990
|
|
$
|
406,603
|
|
Sales and marketing
|
|
|
81,658
|
|
|
54,385
|
|
|
172,001
|
|
|
113,629
|
|
Engineering, research, and development
|
|
|
38,599
|
|
|
26,410
|
|
|
83,615
|
|
|
44,451
|
|
|
|
$
|
352,260
|
|
$
|
300,593
|
|
$
|
741,606
|
|
$
|
564,683
|
|
| Valuation Assumptions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Six Months Ended
|
|
|
|
June 30,
|
|
|
|
2016
|
|
2015
|
|
Risk-free interest rate
|
|
1.56
|
%
|
|
1.56
|
%
|
|
Expected life (years)
|
|
6.00
|
|
|
6.03
|
|
|
Expected dividend yield
|
|
-
|
%
|
|
-
|
%
|
|
Expected volatility
|
|
114
|
%
|
|
132
|
%
|
|
| Restricted Stock Unit Activity |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares
|
|
Weighted Average
Grant Date Fair Value
|
|
Weighted Average
Remaining
Contractual Term
(Years)
|
|
Aggregate
Intrinsic Value
|
|
Outstanding at December 31, 2014
|
|
|
591,436
|
|
$
|
0.75
|
|
|
0.89
|
|
$
|
305,572
|
|
Awarded
|
|
|
82,501
|
|
$
|
0.29
|
|
|
-
|
|
$
|
-
|
|
Released
|
|
|
(20,000)
|
|
$
|
1.18
|
|
|
-
|
|
$
|
-
|
|
Canceled/forfeited/expired
|
|
|
-
|
|
$
|
-
|
|
|
-
|
|
$
|
-
|
|
Outstanding at December 31, 2015
|
|
|
653,937
|
|
$
|
0.32
|
|
|
0.08
|
|
$
|
339,570
|
|
Awarded
|
|
|
116,070
|
|
$
|
0.70
|
|
|
-
|
|
$
|
-
|
|
Released
|
|
|
-
|
|
$
|
-
|
|
|
-
|
|
$
|
-
|
|
Canceled/forfeited/expired
|
|
|
-
|
|
$
|
-
|
|
|
-
|
|
$
|
-
|
|
Outstanding at June 30, 2016
|
|
|
770,007
|
|
$
|
0.38
|
|
|
-
|
|
$
|
399,570
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Expected to vest at June 30, 2016
|
|
|
770,007
|
|
$
|
-
|
|
|
-
|
|
$
|
693,006
|
|
Exercisable at June 30, 2016
|
|
|
703,012
|
|
$
|
-
|
|
|
-
|
|
$
|
632,711
|
|
Unvested at June 30, 2016
|
|
|
96,725
|
|
$
|
-
|
|
|
-
|
|
$
|
87,053
|
|
Unrecognized expense at June 30, 2016
|
|
$
|
61,162
|
|
|
|
|
|
|
|
|
|
|
| Summary Of Non-Employee Warrant Activity |
|
|
|
|
|
|
|
|
|
|
|
Number
Outstanding
|
|
Outstanding at December 31, 2015
|
|
33,333
|
|
Granted
|
|
-
|
|
Exercised
|
|
-
|
|
Canceled/forfeited/expired
|
|
(33,333)
|
|
Outstanding at June 30, 2016
|
|
-
|
|
| Restricted Stock Units (RSUs) [Member] |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Stock-Based Compensation Expense |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Three Months Ended
|
|
Six Months Ended
|
|
|
|
June 30,
|
|
June 30,
|
|
|
|
2016
|
|
2015
|
|
2016
|
|
2015
|
|
General and administrative
|
|
$
|
20,087
|
|
$
|
121,603
|
|
$
|
57,587
|
|
$
|
201,781
|
|
|
|
$
|
20,087
|
|
$
|
121,603
|
|
$
|
57,587
|
|
$
|
201,781
|
|