Stockholders’ Equity (Tables)
|
3 Months Ended |
Mar. 31, 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
|
|
(496,071)
|
|
Outstanding at March 31, 2016
|
|
5,472,657
|
|
|
|
|
|
| Stock-Based Compensation Expense |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Three Months Ended
|
|
|
|
March 31,
|
|
|
|
2016
|
|
2015
|
|
General and administrative
|
|
$
|
239,504
|
|
$
|
186,803
|
|
Sales and marketing
|
|
|
51,704
|
|
|
59,244
|
|
Engineering, research, and development
|
|
|
27,900
|
|
|
18,042
|
|
|
|
$
|
319,108
|
|
$
|
264,089
|
|
| Valuation Assumptions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Three Months Ended
|
|
|
|
March 31,
|
|
|
|
2016
|
|
2015
|
|
Risk-free interest rate
|
|
1.56
|
%
|
|
1.58
|
%
|
|
Expected life (years)
|
|
6.00
|
|
|
6.04
|
|
|
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
|
|
|
-
|
|
$
|
-
|
|
|
-
|
|
$
|
-
|
|
Released
|
|
|
-
|
|
$
|
-
|
|
|
-
|
|
$
|
-
|
|
Canceled/forfeited/expired
|
|
|
-
|
|
$
|
-
|
|
|
-
|
|
$
|
-
|
|
Outstanding at March 31, 2016
|
|
|
653,937
|
|
$
|
0.32
|
|
|
-
|
|
$
|
399,570
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Expected to vest at March 31, 2016
|
|
|
653,937
|
|
$
|
-
|
|
|
-
|
|
$
|
399,570
|
|
Exercisable at March 31, 2016
|
|
|
653,937
|
|
$
|
-
|
|
|
-
|
|
$
|
399,570
|
|
Unvested at March 31, 2016
|
|
|
-
|
|
$
|
-
|
|
|
-
|
|
$
|
-
|
|
Unrecognized expense at March 31, 2016
|
|
$
|
-
|
|
|
|
|
|
|
|
|
|
|
| Summary Of Non-Employee Warrant Activity |
|
|
|
|
|
|
|
|
|
|
|
Number
Outstanding
|
|
Outstanding at December 31, 2015
|
|
33,333
|
|
Granted
|
|
-
|
|
Exercised
|
|
-
|
|
Canceled/forfeited/expired
|
|
(33,333)
|
|
Outstanding at March 31, 2016
|
|
-
|
|
| Restricted Stock Units (RSUs) [Member] |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Stock-Based Compensation Expense |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Three Months Ended
|
|
|
|
March 31,
|
|
|
|
2016
|
|
2015
|
|
General and administrative
|
|
$
|
37,501
|
|
$
|
80,178
|
|
|
|
$
|
37,501
|
|
$
|
80,178
|
|