XML 128 R76.htm IDEA: XBRL DOCUMENT v3.7.0.1
Note 15 - Stock-based Compensation (Details Textual) - USD ($)
1 Months Ended 11 Months Ended 12 Months Ended 36 Months Ended 50 Months Ended 81 Months Ended
Mar. 02, 2016
Jun. 22, 2012
Jun. 30, 2008
Dec. 13, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2016
Dec. 31, 2009
May 31, 2008
Nov. 30, 2009
May 29, 2009
Mar. 30, 2009
Mar. 02, 2006
Aug. 31, 2000
Dec. 31, 1999
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number         207,837,900 177,528,800   207,837,900                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number         138,407,300     138,407,300                
Common Stock, Capital Shares Reserved for Future Issuance         372,769,100     372,769,100                
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate         0.00%                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value         $ 0.0097 $ 0.0127 $ 0.0245                  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized         $ 2,326,000     $ 2,326,000                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term         2 years 127 days                      
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options         $ 75,000 $ 211,000 $ 302,000                  
Restricted Stock Units (RSUs) [Member]                                
Common Stock, Capital Shares Reserved for Future Issuance         57,937,850     57,937,850                
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value         $ 1,169,000 $ 1,246,000 $ 1,189,000                  
Purchase Plan 1999 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized                             50,000,000  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized     20,000,000             40,000,000            
Share-Based Compensation Arrangement By Share-Based Payment Award Minimum Employee Subscription Rate         1.00%     1.00%                
Share-Based Compensation Arrangement By Share-Based Payment Award Employee Subscription Rate Maximum         10.00%     10.00%                
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date         90.00%                      
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date         90.00%                      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term         10 years                      
Stock Issued During Period, Shares, Employee Stock Purchase Plans                 10,685,400              
Purchase Plan 2009 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized                     25,000,000          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized   15,000,000                            
Stock Issued During Period, Shares, Employee Stock Purchase Plans               12,999,450                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value         $ 0.0054 $ 0.008 $ 0.0104                  
Stock Plan 1997 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized         185,000,000     185,000,000                
Stock Incentive Plan 1999 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant                               150,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Annual Increase in Number of Additional Shares Authorized         75,000,000                      
Share-based Compensation Arrangement by Share-based Payment Award, Options Outstanding, Maximum Annual Increase, Percentage         4.00%                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number         0     0                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number         0     0                
Share Option Plan 2005 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized                           100,000,000    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized   50,000,000                            
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term         8 years                      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant                       175,000,000   100,000,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number         166,957,900     166,957,900                
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period         4 years                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number         131,774,600     131,774,600                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value       $ 1,000   $ 2,000 $ 13,000                  
The 2015 Stock Incentive Plan [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 125,000,000                              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number         40,880,000     40,880,000                
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 4 years                              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number         6,632,700     6,632,700                
Common Stock, Capital Shares Reserved for Future Issuance 100,000,000                              
Share Incentive Plan 2005 [Member]                                
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized                         75,000,000      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized   62,500,000                            
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant                       75,000,000 125,000,000      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period           4 years