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Note 7 - Warrants (Detail) - Assumptions Used to Determine Fair Value of Warrants	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Expected life in years	7 years
Warrant [Member]
Risk free interest rate	0.17%	1.87%
Expected volatility	134.00%	558.00%
Expected dividend yield	0.00%	0.00%
Forfeiture rate	0.00%	0.00%
Expected life in years	9 months	3 years

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the expected term of a nonvested share or option award issued to other than an employee.

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- Definition

The estimated measure of the percentage amount by which a share price is expected to fluctuate during the expected term of a nonvested share or option award issued to other than an employee.

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- Definition

The risk-free interest rate assumption that is used in valuing a nonvested share or option award issued to other than an employee.

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