Note 14 - Employee Equity Incentive Plans (Detail) - Status of Non-Vested Shares (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Weighted average grant date fair value (in Dollars per share)	$ 0.09	$ 0.23
End of Period [Member]
Shares underlying stock options	1,828,500
Weighted average grant date fair value (in Dollars per share)	$ 0.10
Beginning of Year [Member]
Shares underlying stock options	1,393,417
Weighted average grant date fair value (in Dollars per share)	$ 0.10