Note 13 - Stock Option and Incentive Plan (Tables)
|
12 Months Ended |
Dec. 31, 2014 |
| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
|
| Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] |
|
|
|
Number of
Restricted Shares
|
|
|
Weighted-Average
Grant Date
Fair Value
|
|
|
Outstanding and not vested beginning balance as of January 1, 2013
|
|
|
48,073
|
|
|
$
|
2.50
|
|
|
Granted
|
|
|
2,500,000
|
|
|
$
|
0.03
|
|
|
Forfeited/cancelled
|
|
|
(21,798
|
)
|
|
$
|
2.46
|
|
|
Released/vested
|
|
|
(635,323
|
)
|
|
$
|
0.08
|
|
|
Outstanding and not vested beginning balance as of January 1, 2014
|
|
|
1,890,952
|
|
|
$
|
0.05
|
|
|
Granted
|
|
|
—
|
|
|
$
|
—
|
|
|
Forfeited/cancelled
|
|
|
—
|
|
|
$
|
—
|
|
|
Released/vested
|
|
|
(1,883,766
|
)
|
|
$
|
0.04
|
|
|
Outstanding and not vested as of December 31, 2014
|
|
|
7,186
|
|
|
$
|
2.16
|
|
|
| Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |
|
|
|
Number of
Shares Subject To
Option 2014
|
|
|
Weighted-Average
Exercise Price
|
|
|
Number of
Shares Subject To
Option 2013
|
|
|
Weighted-Average
Exercise Price
|
|
|
Outstanding beginning balance
|
|
|
6,618,233
|
|
|
$
|
0.11
|
|
|
|
679,744
|
|
|
$
|
2.82
|
|
|
Granted during the year
|
|
|
30,456,250
|
|
|
|
0.02
|
|
|
|
6,400,000
|
|
|
|
0.03
|
|
|
Forfeited/cancelled/expired during the year
|
|
|
(40,000
|
)
|
|
|
5.15
|
|
|
|
(461,511
|
)
|
|
|
3.29
|
|
|
Exercised during the year
|
|
|
—
|
|
|
|
—
|
|
|
|
—
|
|
|
|
—
|
|
|
Outstanding at end of year
|
|
|
37,034,483
|
|
|
$
|
0.03
|
|
|
|
6,618,233
|
|
|
$
|
0.11
|
|
|
Exercisable at end of year
|
|
|
5,934,303
|
|
|
$
|
0.09
|
|
|
|
2,330,650
|
|
|
$
|
0.28
|
|
|
Outstanding and expected to vest
|
|
|
36,916,502
|
|
|
$
|
0.03
|
|
|
|
6 191,212
|
|
|
$
|
0.11
|
|
|
| Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|
|
|
Years Ended
December 31,
|
|
|
|
|
2014
|
|
|
2013
|
|
|
Weighted-average volatility
|
|
|
185.0
|
%
|
|
|
105.5
|
%
|
|
Expected dividends
|
|
|
0.0
|
%
|
|
|
0.0
|
%
|
|
Expected life (in years)
|
|
3.5
|
|
|
2.0
|
|
|
Weighted-average risk-free interest rate
|
|
|
1.1
|
%
|
|
|
0.30
|
%
|
|
| Schedule of Nonvested Share Activity [Table Text Block] |
|
|
|
Non-Vested
Stock Options
|
|
|
Weighted-Average
Grant Date
Fair Value
|
|
|
Outstanding as of January 1, 2014
|
|
|
4,287,583
|
|
|
$
|
0.02
|
|
|
Granted
|
|
|
30,456,250
|
|
|
$
|
0.02
|
|
|
Forfeited/cancelled
|
|
|
(40,000
|
)
|
|
$
|
3.04
|
|
|
Released/vested
|
|
|
(3,637,403
|
)
|
|
$
|
0.02
|
|
|
Outstanding as of December 31, 2014
|
|
|
31,066,430
|
|
|
$
|
0.02
|
|
|
| Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] |
|
|
|
|
|
|
|
Options Outstanding
|
|
|
Vested Options
|
|
|
|
|
|
|
|
|
Number
Outstanding
|
|
|
Weighted-
Average
Remaining
Contractual Life
(in years)
|
|
|
Weighted-
Average
Exercise
Price
|
|
|
Number
Outstanding
|
|
|
Weighted-
Average
Exercise
Price
|
|
|
|
|
|
$0.0192
|
|
|
|
12,450,000
|
|
|
|
4.6
|
|
|
$
|
0.02
|
|
|
|
358,320
|
|
|
$
|
0.02
|
|
|
|
$0.020
|
-
|
$0.023
|
|
|
|
18,000,000
|
|
|
|
4.6
|
|
|
$
|
0.02
|
|
|
|
1,125,000
|
|
|
$
|
0.02
|
|
|
|
|
|
$0.0296
|
|
|
|
6,400,000
|
|
|
|
3.8
|
|
|
$
|
0.0296
|
|
|
|
4,266,500
|
|
|
$
|
0.0296
|
|
|
|
$0.11
|
-
|
$5.32
|
|
|
|
184,483
|
|
|
|
1.3
|
|
|
$
|
1.95
|
|
|
|
184,483
|
|
|
$
|
1.95
|
|
|
|
$0.0192
|
-
|
$5.32
|
|
|
|
37,034,483
|
|
|
|
4.4
|
|
|
$
|
0.03
|
|
|
|
5,934,303
|
|
|
$
|
0.09
|
|
|