Quarterly report pursuant to Section 13 or 15(d)

Stock-based compensation (Details Narrative)

v3.5.0.2
Stock-based compensation (Details Narrative) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Employee stock-based compensation expense $ 719,000 $ 1,218,000 $ 1,436,000 $ 1,311,000
Unrecognized compensation expense $ 9,829,000   $ 9,829,000  
Weighted average period, cost not yet recognized, period for recognition     3 years 6 months  
Vested options 43,051,200   43,051,200  
Vested options, value $ 172,000   $ 172,000  
Vested options, remaining term     3 years 7 months 6 days  
Options exercisable 20,196,201   20,196,201  
Options exercisable, value $ 5,502,000   $ 5,502,000  
Options exercisable, price $ .20   $ .20  
Options exercisable, remaining term     3 years 7 months 6 days  
Equity Incentive Plans [Member]        
Shares authorized for issuance under equity incentive plan 72,536,000   72,536,000  
Options outstanding under plan 43,051,000   43,051,000  
Shares available for future issuance 29,485,000   29,485,000