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Note 9 - Stock option plans: (Detail) - Summary of exercise prices, weghted average remaining contractual life and intrinsic values of outstanding options:
 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2012
USD ($)
Dec. 31, 2012
AFN
Dec. 31, 2011
USD ($)
Dec. 31, 2010
USD ($)
Dec. 31, 2009
Dec. 31, 2012
Exercise Price $0.31-$0.48 [Member]
USD ($)
Dec. 31, 2012
Exercise Price $0.31-$0.48 [Member]
AFN
Dec. 31, 2012
Exercise Price $0.56 - $0.69 [Member]
USD ($)
Dec. 31, 2012
Exercise Price $0.56 - $0.69 [Member]
AFN
Dec. 31, 2012
Exercise Price $0.70 - $0.99 [Member]
USD ($)
Dec. 31, 2012
Exercise Price $0.70 - $0.99 [Member]
AFN
Options outstanding - Exercise price - lower           $ 0.31   $ 0.56   $ 0.80  
Options outstanding - Exercise price - upper           $ 0.48   $ 0.75   $ 1.38  
Options outstanding - Number outstanding (in Shares) 8,592,686 8,592,686 8,746,041 8,272,249 7,213,977 3,130,574   3,790,112   1,672,000  
Options outstanding - Weighted average exercise price per share (in Afghanis per share)   0.64         0.38   0.66   1.08
Options outstanding - Weighted average remaining contractual life (years)           219 days   3 years 109 days   3 years 146 days  
Options outstanding - Aggregate intrinsic value (in Dollars) $ 6,898,947         $ 3,333,310   $ 2,970,677   $ 594,960  
Options exercisable - Number exercisable (in Shares) 7,090,892 7,090,892 7,042,415 6,205,248   3,130,574   2,823,318   1,137,000  
Options exercisable - Weighted average exercise price per share $ 0.57   $ 0.54 $ 0.51   $ 0.38   $ 0.64   $ 0.96  
Options exercisable - Aggregate intrinsic value (in Dollars) $ 6,146,268         $ 3,333,310   $ 2,264,948   $ 548,010