Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013		Sep. 30, 2013		Dec. 31, 2012
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	$ 33,433		$ 33,433		$ 47,198
Total gains (losses)	648		(4,569)		(2,861)
Loans Held For Sale [Member] | Fair Value, Inputs, Level 1 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	0		0		0
Loans Held For Sale [Member] | Fair Value, Inputs, Level 2 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	1,180		1,180		2,584
Loans Held For Sale [Member] | Fair Value, Inputs, Level 3 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	0		0		0
Loans Held For Sale [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	1,180		1,180		2,584
Total gains (losses)	48		10		15
Mortgage Servicing Rights [Member] | Fair Value, Inputs, Level 1 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	0		0		0
Mortgage Servicing Rights [Member] | Fair Value, Inputs, Level 2 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	1,769		1,769		1,732
Mortgage Servicing Rights [Member] | Fair Value, Inputs, Level 3 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	0		0		0
Mortgage Servicing Rights [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	1,769		1,769		1,732
Total gains (losses)	0		0		0
Receivable Loans [Member] | Fair Value, Inputs, Level 1 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	0	[1]	0	[1]	0	[1]
Receivable Loans [Member] | Fair Value, Inputs, Level 2 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	21,585	[1]	21,585	[1]	32,287	[1]
Receivable Loans [Member] | Fair Value, Inputs, Level 3 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	0	[1]	0	[1]	0	[1]
Receivable Loans [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	21,585	[1]	21,585	[1]	32,287	[1]
Total gains (losses)	614	[1]	(4,252)	[1]	(2,307)	[1]
Real estate, net [Member] | Fair Value, Inputs, Level 1 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	0	[2]	0	[2]	0	[2]
Real estate, net [Member] | Fair Value, Inputs, Level 2 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	8,899	[2]	8,899	[2]	10,595	[2]
Real estate, net [Member] | Fair Value, Inputs, Level 3 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	0	[2]	0	[2]	0	[2]
Real estate, net [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	8,899	[2]	8,899	[2]	10,595	[2]
Total gains (losses)	(14)	[2]	(327)	[2]	(569)	[2]
Fair Value, Inputs, Level 1 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	0		0		0
Fair Value, Inputs, Level 2 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	33,433		33,433		47,198
Fair Value, Inputs, Level 3 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis: [Line Items]
Financial Assets	$ 0		$ 0		$ 0

[1] Represents the carrying value and related specific reserves on loans for which adjustments are based on the appraised value of the collateral. The carrying value of loans fully charged-off is zero.

[2] Represents the fair value and related losses of foreclosed real estate and other collateral owned that were measured at fair value subsequent to their initial classification as foreclosed assets.