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Note 5 - Stockholders' Equity (Details) - Employee Share-Based Compensation Expense (USD $)
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3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
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Jun. 30, 2013
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Jun. 30, 2012
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Jun. 30, 2013
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Jun. 30, 2012
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| Employee Share-Based Compensation Expense [Abstract] | ||||
| $ 324,124 | $ 313,707 | $ 642,591 | $ 543,562 | |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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