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Note 12 - Share-Based Payments (Details) - Summary of exercise prices, weghted average remaining contractual life and intrinsic values of outstanding options
9 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended
Sep. 30, 2013
USD ($)
Sep. 30, 2013
AFN
Jun. 30, 2013
USD ($)
Dec. 31, 2012
USD ($)
Sep. 30, 2012
USD ($)
Jun. 30, 2012
USD ($)
Dec. 31, 2011
USD ($)
Sep. 30, 2013
Exercise Price $0.38 - $0.60 [Member]
USD ($)
Sep. 30, 2013
Exercise Price $0.38 - $0.60 [Member]
AFN
Sep. 30, 2013
Exercise Price $0.62 - $0.70 [Member]
USD ($)
Sep. 30, 2013
Exercise Price $0.62 - $0.70 [Member]
AFN
Sep. 30, 2013
Exercise Price $0.73 - $0.94 [Member]
USD ($)
Sep. 30, 2013
Exercise Price $0.73 - $0.94 [Member]
AFN
Sep. 30, 2013
Exercise Price $1.05 - $2.23 [Member]
USD ($)
Sep. 30, 2013
Exercise Price $1.05 - $2.23 [Member]
AFN
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]                              
Exercise price - lower               $ 0.38   $ 0.62   $ 0.73   $ 1.05  
Exercise price - higher               $ 0.60   $ 0.70   $ 0.94   $ 2.23  
Number Outstanding (in Shares) 5,542,738 5,542,738 8,468,485 8,592,686 8,664,623 8,524,499 8,746,041 1,349,125   1,531,550   1,383,813   1,278,250  
Weighted average exercise price per share ,options outstanding (in Afghanis per share) $ 0.91 0.91 $ 0.71 $ 0.64 $ 0.64 $ 0.62 $ 0.57   0.58   0.69   0.80   1.62
Weighted average remaining contractual life (years), options outstanding 3 years 3 years           1 year 73 days   3 years 73 days   2 years 73 days   5 years 219 days  
Aggregate intrinsic value, options outstanding (in Dollars) $ 8,229,438             $ 2,440,266   $ 2,606,519   $ 2,196,030   $ 986,623  
Number exercisable (in Shares) 4,199,238 4,199,238     7,160,766     1,349,125   1,223,550   1,182,438   444,125  
Weighted average exercise price per share, options exercisable $ 0.78       $ 0.57     $ 0.58   $ 0.69   $ 0.82   $ 1.54  
Aggregate intrinsic value, options exercisable (in Dollars) $ 6,766,392             $ 2,440,266   $ 2,086,000   $ 1,861,747   $ 378,379