Note 10 - Shareholders' Equity (Detail) - Stock option valuation assumptions (USD $)	12 Months Ended
	Dec. 31, 2011
Exercise price (in Dollars per share)	$ 1.15	[1]
Risk-free interest rate	0.96%	[1]
Expected volatility	50.30%	[1]
Expected life in years	4 years 109 days	[1]
Dividend rate
Black-Scholes-Merton fair value (in Dollars per share)	$ 0.47	[1]

[1] The fair value calculation was based on the stock options granted during the period.