Note 4 - Loans (Details) - Allowance for Loan Losses (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Note 4 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	$ 17,470	$ 23,388	$ 17,825	$ 25,596
Provision for loan losses	670	8,450	1,020	11,150
Loan charge-offs	1,127	13,854	2,075	19,104
Loan recoveries	205	294	448	636
Net loans charged-off	922	13,560	1,627	18,468
Allowance for loan losses, end of period	17,218	18,278	17,218	18,278
Individually evaluated for impairment	46,574	45,034	46,574	45,034
Collectively evaluated for impairment	694,781	678,952	694,781	678,952
Loans, gross	741,355	723,986	741,355	723,986	738,282
Individually evaluated for impairment	3,050	3,295	3,050	3,295
Collectively evaluated for impairment	14,168	14,983	14,168	14,983
Commercial Real Estate Loans [Member]
Note 4 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	11,614	15,771	12,317	18,026
Provision for loan losses	(328)	8,226	(598)	9,643
Loan charge-offs	294	11,470	758	15,221
Loan recoveries	37	25	68	104
Net loans charged-off	257	11,445	690	15,117
Allowance for loan losses, end of period	11,029	12,552	11,029	12,552
Individually evaluated for impairment	40,953	40,299	40,953	40,299
Collectively evaluated for impairment	408,666	401,289	408,666	401,289
Loans, gross	449,619	441,588	449,619	441,588
Individually evaluated for impairment	2,001	3,087	2,001	3,087
Collectively evaluated for impairment	9,028	9,465	9,028	9,465
Single Family Residential [Member]
Note 4 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	2,949	4,534	3,140	4,488
Provision for loan losses	352	625	251	1,649
Loan charge-offs	299	1,880	432	2,903
Loan recoveries	16	29	59	74
Net loans charged-off	283	1,851	373	2,829
Allowance for loan losses, end of period	3,018	3,308	3,018	3,308
Individually evaluated for impairment	2,797	3,176	2,797	3,176
Collectively evaluated for impairment	167,938	169,861	167,938	169,861
Loans, gross	170,735	173,037	170,735	173,037
Individually evaluated for impairment	209	158	209	158
Collectively evaluated for impairment	2,809	3,150	2,809	3,150
Commercial And Industrial [Member]
Note 4 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	1,890	1,901	1,264	1,862
Provision for loan losses	559	(428)	1,214	(334)
Loan charge-offs	335	228	374	302
Loan recoveries	25	89	35	108
Net loans charged-off	310	139	339	194
Allowance for loan losses, end of period	2,139	1,334	2,139	1,334
Individually evaluated for impairment	2,788	1,518	2,788	1,518
Collectively evaluated for impairment	61,205	47,335	61,205	47,335
Loans, gross	63,993	48,853	63,993	48,853
Individually evaluated for impairment	836	45	836	45
Collectively evaluated for impairment	1,303	1,289	1,303	1,289
Consumer [Member]
Note 4 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	1,013	1,129	1,093	1,209
Provision for loan losses	35	14	18	114
Loan charge-offs	64	118	161	359
Loan recoveries	41	45	75	106
Net loans charged-off	23	73	86	253
Allowance for loan losses, end of period	1,025	1,070	1,025	1,070
Individually evaluated for impairment	36	41	36	41
Collectively evaluated for impairment	48,444	51,775	48,444	51,775
Loans, gross	48,480	51,816	48,480	51,816	50,574
Individually evaluated for impairment	4	5	4	5
Collectively evaluated for impairment	1,021	1,065	1,021	1,065
All Other [Member]
Note 4 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	4	53	11	11
Provision for loan losses	52	13	135	78
Loan charge-offs	135	158	350	319
Loan recoveries	86	106	211	244
Net loans charged-off	49	52	139	75
Allowance for loan losses, end of period	7	14	7	14
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	8,528	8,692	8,528	8,692
Loans, gross	8,528	8,692	8,528	8,692	9,431
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	$ 7	$ 14	$ 7	$ 14

Allowance for loan and lease losses write offs net of recoveries.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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