Note 11 - Fair Value Measurements (Detail) (USD $)			3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Warrants Outstanding [Member] Minimum [Member]	Mar. 31, 2013 Warrants Outstanding [Member] Maximum [Member]	Mar. 31, 2013 Minimum [Member]	Mar. 31, 2013 Maximum [Member]	Mar. 31, 2012 Estimate of Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2013 Accounts Receivable Collateral [Member]	Mar. 31, 2013 Inventory Collateral [Member]
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Warrants (in Dollars)	$ 98,000	$ 104,000
Other Real Estate, Foreclosed Assets, and Repossessed Assets (in Dollars)	$ 45,316,000	$ 46,384,000					$ 45,300,000
Collateral Discount Rates								45.00%	65.00%
Estimated Sales Cost Applied To Collateral					3.00%	6.00%
Expected Life of Warrants					1 year	4 years
Fair Value Assumptions, Risk Free Interest Rate			0.25%	0.56%
Fair Value Assumptions, Expected Volatility Rate			12.60%	17.40%