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, 2014		Sep. 30, 2014		Dec. 31, 2013
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	$ 17,721		$ 17,721		$ 27,606
Total gains (losses)	859		365		(2,136)
Fair Value, Inputs, Level 1 [Member] | Loans Held For Sale [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	0		0		0
Fair Value, Inputs, Level 1 [Member] | Mortgage Servicing Rights [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	0		0		0
Fair Value, Inputs, Level 1 [Member] | Loans Receivable [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	0	[1]	0	[1]	0	[1]
Fair Value, Inputs, Level 1 [Member] | Real estate, net [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	0	[2]	0	[2]	0	[2]
Fair Value, Inputs, Level 1 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	0		0		0
Fair Value, Inputs, Level 2 [Member] | Loans Held For Sale [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	1,235		1,235		1,502
Fair Value, Inputs, Level 2 [Member] | Mortgage Servicing Rights [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	1,542		1,542		1,708
Fair Value, Inputs, Level 2 [Member] | Loans Receivable [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	11,499	[1]	11,499	[1]	17,498	[1]
Fair Value, Inputs, Level 2 [Member] | Real estate, net [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	3,445	[2]	3,445	[2]	6,898	[2]
Fair Value, Inputs, Level 2 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	17,721		17,721		27,606
Fair Value, Inputs, Level 3 [Member] | Loans Held For Sale [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	0		0		0
Fair Value, Inputs, Level 3 [Member] | Mortgage Servicing Rights [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	0		0		0
Fair Value, Inputs, Level 3 [Member] | Loans Receivable [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	0	[1]	0	[1]	0	[1]
Fair Value, Inputs, Level 3 [Member] | Real estate, net [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	0	[2]	0	[2]	0	[2]
Fair Value, Inputs, Level 3 [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
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]
Assets	1,235		1,235		1,502
Total gains (losses)	(67)		(3)		21
Mortgage Servicing Rights [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	1,542		1,542		1,708
Total gains (losses)	0		0		0
Loans Receivable [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	11,499	[1]	11,499	[1]	17,498	[1]
Total gains (losses)	934	[1]	590	[1]	(1,728)	[1]
Real estate, net [Member]
Note 5 - Fair Value Measurements (Details) - Assets Measured at Fair Value on Nonrecurring Basis [Line Items]
Assets	3,445	[2]	3,445	[2]	6,898	[2]
Total gains (losses)	$ (8)	[2]	$ (222)	[2]	$ (429)	[2]

[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.