Note 14 - Income Taxes (Detail) - Rollforward of Unrecognized Tax Benefits (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Balance at beginning of year	$ 429	$ 314	$ 5,751
Balance at end of year	368	429	314
Interest and penalties not included above (1):
Interest expense (benefit), net of tax effect, and penalties	44	(21)	(556)
Accrued interest and penalties, net of tax effect, at end of year	52	8	29
Additions for tax positions relating to the current year		2	9
Additions for tax positions relating to prior years	226	263
Reductions for tax positions relating to prior years	(80)	(72)	(5,446)
Reductions for settlements with taxing authorities	(207)
Lapse in statute of limitations		$ (78)