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Note 7 - (Details) - Supplemental cash flow information (USD $)
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6 Months Ended | |
|---|---|---|
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Jun. 30, 2013
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Jun. 30, 2012
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| Supplemental cash flow information [Abstract] | ||
| Income taxes paid | $ 4,303,312 | $ 6,924,051 |
| X | ||||||||||
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- Definition
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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