Note 13 - Income Taxes (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Income Tax Expense (Benefit)	$ 1,410,000	$ 762,000	$ 4,023,000	$ 3,090,000
Effective Income Tax Rate, Continuing Operations	32.90%	25.10%	32.70%	31.40%
Deferred Tax Assets, Net of Valuation Allowance	13,902,000		13,902,000		14,995,000
Income Tax Expense [Member]
Income Tax Expense (Benefit)			4,000,000
Income Tax Benefit [Member]
Income Tax Expense (Benefit)				3,100,000
Deferred Tax Asset [Member]
Deferred Tax Assets, Net of Valuation Allowance	$ 13,900,000		$ 13,900,000