Note 3 - Loans (Details) - Allowance for Credit Losses and Recorded Investment in Financing Receivables (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Note 3 - Loans (Details) - Allowance for Credit Losses and Recorded Investment in Financing Receivables [Line Items]
Provision for loan losses	$ 0	$ 1,364	$ 1,830	$ 6,352
Commercial and Industrial [Member]
Note 3 - Loans (Details) - Allowance for Credit Losses and Recorded Investment in Financing Receivables [Line Items]
Beginning Balance	1,821	2,404	1,896	2,485
Provision for loan losses	14	(238)	92	81
Loans charged off	(68)	(110)	(274)	(535)
Recoveries	106	34	159	59
Ending Balance	1,873	2,090	1,873	2,090
Commercial Real Estate Loans [Member]
Note 3 - Loans (Details) - Allowance for Credit Losses and Recorded Investment in Financing Receivables [Line Items]
Beginning Balance	10,237	11,215	11,565	11,534
Provision for loan losses	36	817	283	3,059
Loans charged off	(107)	(956)	(1,770)	(3,605)
Recoveries	109	277	197	365
Ending Balance	10,275	11,353	10,275	11,353
First Lien Residential Mortgage Loans [Member]
Note 3 - Loans (Details) - Allowance for Credit Losses and Recorded Investment in Financing Receivables [Line Items]
Beginning Balance	6,287	5,643	5,656	5,393
Provision for loan losses	71	845	1,626	2,138
Loans charged off	(587)	(571)	(1,570)	(1,744)
Recoveries	10	35	69	165
Ending Balance	5,781	5,952	5,781	5,952
Junior Lein Residential Mortgage Loans [Member]
Note 3 - Loans (Details) - Allowance for Credit Losses and Recorded Investment in Financing Receivables [Line Items]
Beginning Balance	569	523	555	505
Provision for loan losses	10	229	207	533
Loans charged off	(41)	(174)	(224)	(460)
Recoveries	0	0	0	0
Ending Balance	538	578	538	578
Consumer Loans [Member]
Note 3 - Loans (Details) - Allowance for Credit Losses and Recorded Investment in Financing Receivables [Line Items]
Beginning Balance	579	851	805	931
Provision for loan losses	87	94	(43)	209
Loans charged off	(79)	(163)	(367)	(547)
Recoveries	26	74	218	263
Ending Balance	613	856	613	856
Unallocated Financing Receivables [Member]
Note 3 - Loans (Details) - Allowance for Credit Losses and Recorded Investment in Financing Receivables [Line Items]
Beginning Balance	746	886	863	171
Provision for loan losses	(218)	(383)	(335)	332
Loans charged off	0	0	0	0
Recoveries	0	0	0	0
Ending Balance	528	503	528	503
Total [Member]
Note 3 - Loans (Details) - Allowance for Credit Losses and Recorded Investment in Financing Receivables [Line Items]
Beginning Balance	20,239	21,522	21,340	21,019
Provision for loan losses	0	1,364	1,830	6,352
Loans charged off	(882)	(1,974)	(4,205)	(6,891)
Recoveries	251	420	643	852
Ending Balance	$ 19,608	$ 21,332	$ 19,608	$ 21,332