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Note 12 - Stockholders' (Deficit) (Tables)
6 Months Ended
Jun. 30, 2016
Warrant [Member]  
Notes Tables  
Schedule of Share-based Compensation, Activity [Table Text Block]
Warrants
 
 
 
 
Balance at December 31, 2014
    48,463,517  
Issued
    3,800,000  
Exercised
    -0-  
Cancelled
    (29,363,517 )
Expired/forfeited
    -0-  
Balance at December 31, 2015
    22,900,000  
Issued
    4,970,000  
Exercised
    -0-  
Expired/forfeited
    (10,000 )
Balance at June 30, 2016
    27,860,000  
Warrants exercisable at June 30, 2016
    27,860,000  
         
Weighted average fair value of warrants granted during 2016
  $ 0.15  
Schedule Of Dividends In Arrears [Table Text Block]
 
 
Cumulative arrearage
as of
 
 
Cumulative arrearage per share
as of
 
 
 
June 30,
 
 
June 30,
 
Series of preferred stock
 
2016
 
 
2015
 
 
2016
 
 
2015
 
                                 
Series A
  $ -0-     $ 2,688,984     $ -0-     $ 0.65  
Series B
    609,887       609,887     $ 3.05     $ 3.05  
Series C
    1,472,093       1,472,093     $ 4.37     $ 4.37  
Total preferred stock arrearage
  $ 2,081,980     $ 4,770,964                  
Schedule of Dividends Payable [Table Text Block]
 
 
Dividends accreted
 
 
Dividends per share
 
 
 
For the six months ended
 
 
For the six months ended
 
 
 
June 30,
 
 
June 30,
 
 
 
2016
 
 
2015
 
 
2016
 
 
2015
 
Preferred stock dividends in arrears Series A
  $ 1,870     $ 102,283     $ 0.012     $ 0.025  
Preferred stock dividends in arrears Series B
  $ -0-     $ -0-     $ -0-     $ -0-  
Preferred stock dividends in arrears Series C
  $ -0-     $ -0-     $ -0-     $ -0-  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
June 30, 2016
 
 
June 30, 2016
 
Warrants outstanding
 
 
Warrants exercisable
 
Range of
exercise price
 
 
Number
outstanding
 
 
Weighted average
remaining
contractual life
 
 
Weighted average
exercise
price
 
 
Number
exercisable
 
 
Weighted average
exercise
price
 
$0.25 $0.60       27,860,000       3.21     $ 0.42       27,860,000     $ 0.42  
December 31, 2015
 
 
December 31, 2015
 
Warrants outstanding
 
 
 
Warrants exercisable
 
Range of
exercise price
 
 
Number
outstanding
 
 
Weighted average
remaining
contractual life
 
 
Weighted average
exercise price
 
 
Number
exercisable
 
 
Weighted average
exercise price
 
$0.25 $0.60       22,900,000       1.76     $ 0.46       22,900,000     $ 0.46  
Schedule of Share-based Compensation, Activity [Table Text Block]
 
 
Weighted average grant date fair value
 
 
 
for the six months ended June 30,
 
 
 
2016
 
 
2015
 
Stock options granted during the period
  $ -0-     $ 0.26  
                 
Stock options vested during the period
  $ 0.22     $ 0.18  
                 
Stock options forfeited during the period
  $ 0.11     $ 0.25  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
 
 
Foreign currency
translation
 
 
Accumulated other comprehensive (loss)
 
Balance at December 31, 2014
  $ (243,827 )   $ (243,827 )
2015 Activity
    (122,528 )     (122,528 )
Balance at December 31, 2015
    (366,355 )     (366,355 )
2016 Activity
    (17,787 )     (17,787 )
Balance at June 30, 2016
  $ (384,142 )   $ (384,142 )