Note 19 - Equity Incentive Plans (Detail) - Restricted Stock Units	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Granted	125,133	147,661
Restricted Stock Units (RSUs) [Member]
Balance at December 31, 2009				60,021
Vested	(11,814)	(12,633)	(15,006)
Cancelled or forfeited	(28,113)	(2,578)	(6,055)
Balance	256,616	171,410	38,960
Granted	125,133	147,661