Note 3 - Average Common Shares Outstanding Used to Compute Net Loss Per Share (Details) - Loss Per Share Computation	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Loss Per Share Computation [Abstract]
Basic and diluted	18,778,187	18,712,284	18,764,271	18,694,775
Potentially dilutive	67,448	110,193	67,448	110,193