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Note 12 - Share-Based Payments (Detail) - Summary of exercise prices, weghted average remaining contractual life and intrinsic values of outstanding options: |  |  |  |  | 3 Months Ended |  | 3 Months Ended |  | 3 Months Ended |  | 3 Months Ended |
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Mar. 31, 2013 USD ($) | Dec. 31, 2012 | Mar. 31, 2012 USD ($) | Dec. 31, 2011 | Mar. 31, 2013 Excercise Price $0.31 - $0.48 [Member] Options Outstanding [Member] USD ($) | Mar. 31, 2013 Excercise Price $0.31 - $0.48 [Member] Options Outstanding [Member] AFN | Mar. 31, 2013 Excercise Price $0.31 - $0.48 [Member] Options Exercisable [Member[ USD ($) | Mar. 31, 2013 Excercise Price $0.31 - $0.48 [Member] USD ($) | Mar. 31, 2013 Exercise Price $0.56 - $0.94 [Member] Options Outstanding [Member] USD ($) | Mar. 31, 2013 Exercise Price $0.56 - $0.94 [Member] Options Outstanding [Member] AFN | Mar. 31, 2013 Exercise Price $0.56 - $0.94 [Member] Options Exercisable [Member[ USD ($) | Mar. 31, 2013 Exercise Price $0.56 - $0.94 [Member] USD ($) | Mar. 31, 2013 Exercise Price $1.05 - $1.44 [Member] Options Outstanding [Member] USD ($) | Mar. 31, 2013 Exercise Price $1.05 - $1.44 [Member] Options Outstanding [Member] AFN | Mar. 31, 2013 Exercise Price $1.05 - $1.44 [Member] Options Exercisable [Member[ USD ($) | Mar. 31, 2013 Exercise Price $1.05 - $1.44 [Member] USD ($) | Mar. 31, 2013 Options Outstanding [Member] USD ($) | Mar. 31, 2013 Options Outstanding [Member] AFN | Mar. 31, 2013 Options Exercisable [Member[ USD ($)
Exercise price - lower |  |  |  |  |  |  |  | $ 0.31 |  |  |  | $ 0.56 |  |  |  | $ 1.05 |  |  |
Exercise price - higher |  |  |  |  |  |  |  | $ 0.48 |  |  |  | $ 0.94 |  |  |  | $ 1.44 |  |  |
Number Outstanding (in Shares) | 8,672,016 | 8,592,686 | 8,458,699 | 8,746,041 | 3,113,904 | 3,113,904 |  |  | 4,650,112 | 4,650,112 |  |  | 908,000 | 908,000 |  |  | 8,672,016 | 8,672,016 |
Weighted average exercise price per share (in Afghanis per share) |  |  |  |  |  | 0.38 |  |  |  | 0.69 |  |  |  | 1.37 |  |  |  | 0.65 |
Weighted average remaining contractual life (years) |  |  |  |  | 146 days | 146 days |  |  | 2 years 255 days | 2 years 255 days |  |  | 5 years 292 days | 5 years 292 days |  |  | 2 years 73 days | 2 years 73 days |
Aggregate intrinsic value (in Dollars) |  |  |  |  | $ 4,187,302 |  |  |  | $ 4,773,988 |  |  |  | $ 317,170 |  |  |  | $ 9,278,460 |  |
Number exercisable (in Shares) | 7,044,598 |  | 6,746,199 |  |  |  | 3,113,904 |  |  |  | 3,689,444 |  |  |  | 241,250 |  |  |  | 7,044,598
Weighted average exercise price per share | $ 0.57 |  | $ 0.54 |  |  |  | $ 0.38 |  |  |  | $ 0.69 |  |  |  | $ 1.35 |  |  |  | $ 0.57
Aggregate intrinsic value (in Dollars) |  |  |  |  |  |  | $ 4,187,302 |  |  |  | $ 3,803,637 |  |  |  | $ 88,337 |  |  |  | $ 8,079,276

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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c), d(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph d(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(b) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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