Note 6 - Stockholder's Equity (Details) - Valuation Assumptions, Stock Options	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Note 6 - Stockholder's Equity (Details) - Valuation Assumptions, Stock Options [Line Items]
Risk-free interest rate	0.30%
Employee Stock Option [Member]
Note 6 - Stockholder's Equity (Details) - Valuation Assumptions, Stock Options [Line Items]
Expected term (years)	4 years 36 days	4 years 36 days
Expected volatility	53.40%	52.90%
Risk-free interest rate	0.60%	1.10%