Note 5 - Loans (Details) - Allowance for Loan Losses (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	$ 15,596	$ 17,218	$ 16,485	$ 17,825
Provision for loan losses	(500)	645	(500)	1,665
Loan charge-offs	721	1,386	2,211	3,461
Loan recoveries	991	229	1,592	677
Net loans charged-off	(270)	1,157	619	2,784
Allowance for loan losses, end of period	15,366	16,706	15,366	16,706
Allowance for loan losses, individually evaluated for impairment	2,476	2,168	2,476	2,168
Allowance for loan losses, collectively evaluated for impairment	12,890	14,538	12,890	14,538
Loans, gross, individually evaluated for impairment	40,480	44,185	40,480	44,185
Loans, gross, collectively evaluated for impairment	736,467	712,629	736,467	712,629
Loans, gross	776,947	756,814	776,947	756,814	767,513
Commercial Real Estate Loans [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	10,259	11,029	10,565	12,317
Provision for loan losses	(436)	562	(214)	(36)
Loan charge-offs	150	526	929	1,284
Loan recoveries	61	40	312	108
Net loans charged-off	89	486	617	1,176
Allowance for loan losses, end of period	9,734	11,105	9,734	11,105
Allowance for loan losses, individually evaluated for impairment	2,115	1,952	2,115	1,952
Allowance for loan losses, collectively evaluated for impairment	7,619	9,153	7,619	9,153
Loans, gross, individually evaluated for impairment	37,569	40,224	37,569	40,224
Loans, gross, collectively evaluated for impairment	408,679	414,834	408,679	414,834
Loans, gross	446,248	455,058	446,248	455,058	455,452
Single Family Residential [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	3,112	3,018	3,124	3,140
Provision for loan losses	(374)	214	(302)	465
Loan charge-offs	331	179	520	611
Loan recoveries	840	28	945	87
Net loans charged-off	(509)	151	(425)	524
Allowance for loan losses, end of period	3,247	3,081	3,247	3,081
Allowance for loan losses, individually evaluated for impairment	70	195	70	195
Allowance for loan losses, collectively evaluated for impairment	3,177	2,886	3,177	2,886
Loans, gross, individually evaluated for impairment	1,332	2,633	1,332	2,633
Loans, gross, collectively evaluated for impairment	192,542	172,060	192,542	172,060
Loans, gross	193,874	174,693	193,874	174,693	178,125
Commercial and Industrial [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	1,083	2,139	1,682	1,264
Provision for loan losses	231	(254)	(247)	960
Loan charge-offs	33	472	178	846
Loan recoveries	11	44	35	79
Net loans charged-off	22	428	143	767
Allowance for loan losses, end of period	1,292	1,457	1,292	1,457
Allowance for loan losses, individually evaluated for impairment	288	17	288	17
Allowance for loan losses, collectively evaluated for impairment	1,004	1,440	1,004	1,440
Loans, gross, individually evaluated for impairment	1,564	1,294	1,564	1,294
Loans, gross, collectively evaluated for impairment	71,999	65,803	71,999	65,803
Loans, gross	73,563	67,097	73,563	67,097	73,078
Consumer [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	915	1,025	1,118	1,093
Provision for loan losses	61	50	(84)	68
Loan charge-offs	49	58	159	219
Loan recoveries	10	36	62	111
Net loans charged-off	39	22	97	108
Allowance for loan losses, end of period	937	1,053	937	1,053
Allowance for loan losses, individually evaluated for impairment	3	4	3	4
Allowance for loan losses, collectively evaluated for impairment	934	1,049	934	1,049
Loans, gross, individually evaluated for impairment	15	34	15	34
Loans, gross, collectively evaluated for impairment	53,056	49,362	53,056	49,362
Loans, gross	53,071	49,396	53,071	49,396	50,099
All Other [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	227	7	(4)	11
Provision for loan losses	18	73	347	208
Loan charge-offs	158	151	425	501
Loan recoveries	69	81	238	292
Net loans charged-off	89	70	187	209
Allowance for loan losses, end of period	156	10	156	10
Allowance for loan losses, collectively evaluated for impairment	156	10	156	10
Loans, gross, collectively evaluated for impairment	10,191	10,570	10,191	10,570
Loans, gross	$ 10,191	$ 10,570	$ 10,191	$ 10,570	$ 10,759

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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, after recoveries, of loans and leases that have been written-off.

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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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