Note 5 - Loans (Details) - Allowance for Loan Losses (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	$ 17,218	$ 18,278	$ 17,825	$ 25,596
Provision for loan losses	645	600	1,665	11,750
Loan charge-offs	1,386	791	3,461	19,895
Loan recoveries	229	251	677	887
Net loans charged-off	1,157	540	2,784	19,008
Allowance for loan losses, end of period	16,706	18,338	16,706	18,338
Loans, gross, individually evaluated for impairment	44,185	40,752	44,185	40,752
Loans, gross, collectively evaluated for impairment	712,629	693,188	712,629	693,188
Loans, gross	756,814	733,940	756,814	733,940	738,282
Allowance for loan losses, individually evaluated for impairment	2,168	3,442	2,168	3,442
Allowance for loan losses, collectively evaluated for impairment	14,538	14,896	14,538	14,896
Commercial Real Estate Loans [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	11,029	12,552	12,317	18,026
Provision for loan losses	562	483	(36)	10,126
Loan charge-offs	526	274	1,284	15,495
Loan recoveries	40	66	108	170
Net loans charged-off	486	208	1,176	15,325
Allowance for loan losses, end of period	11,105	12,827	11,105	12,827
Loans, gross, individually evaluated for impairment	40,224	35,486	40,224	35,486
Loans, gross, collectively evaluated for impairment	414,834	415,898	414,834	415,898
Loans, gross	455,058	451,384	455,058	451,384
Allowance for loan losses, individually evaluated for impairment	1,952	3,127	1,952	3,127
Allowance for loan losses, collectively evaluated for impairment	9,153	9,700	9,153	9,700
Single Family Residential [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	3,018	3,308	3,140	4,488
Provision for loan losses	214	40	465	1,689
Loan charge-offs	179	141	611	3,044
Loan recoveries	28	20	87	94
Net loans charged-off	151	121	524	2,950
Allowance for loan losses, end of period	3,081	3,227	3,081	3,227
Loans, gross, individually evaluated for impairment	2,633	3,746	2,633	3,746
Loans, gross, collectively evaluated for impairment	172,060	166,397	172,060	166,397
Loans, gross	174,693	170,143	174,693	170,143
Allowance for loan losses, individually evaluated for impairment	195	261	195	261
Allowance for loan losses, collectively evaluated for impairment	2,886	2,966	2,886	2,966
Commercial And Industrial [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	2,139	1,334	1,264	1,862
Provision for loan losses	(254)	(92)	960	(426)
Loan charge-offs	472	59	846	361
Loan recoveries	44	25	79	133
Net loans charged-off	428	34	767	228
Allowance for loan losses, end of period	1,457	1,208	1,457	1,208
Loans, gross, individually evaluated for impairment	1,294	1,481	1,294	1,481
Loans, gross, collectively evaluated for impairment	65,803	50,440	65,803	50,440
Loans, gross	67,097	51,921	67,097	51,921
Allowance for loan losses, individually evaluated for impairment	17	49	17	49
Allowance for loan losses, collectively evaluated for impairment	1,440	1,159	1,440	1,159
Consumer [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	1,025	1,070	1,093	1,209
Provision for loan losses	50	104	68	218
Loan charge-offs	58	139	219	498
Loan recoveries	36	39	111	145
Net loans charged-off	22	100	108	353
Allowance for loan losses, end of period	1,053	1,074	1,053	1,074
Loans, gross, individually evaluated for impairment	34	39	34	39
Loans, gross, collectively evaluated for impairment	49,362	51,332	49,362	51,332
Loans, gross	49,396	51,371	49,396	51,371	50,574
Allowance for loan losses, individually evaluated for impairment	4	5	4	5
Allowance for loan losses, collectively evaluated for impairment	1,049	1,069	1,049	1,069
All Other [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	7	14	11	11
Provision for loan losses	73	65	208	143
Loan charge-offs	151	178	501	497
Loan recoveries	81	101	292	345
Net loans charged-off	70	77	209	152
Allowance for loan losses, end of period	10	2	10	2
Loans, gross, individually evaluated for impairment	0	0	0	0
Loans, gross, collectively evaluated for impairment	10,570	9,121	10,570	9,121
Loans, gross	10,570	9,121	10,570	9,121	9,431
Allowance for loan losses, individually evaluated for impairment	0	0	0	0
Allowance for loan losses, collectively evaluated for impairment	$ 10	$ 2	$ 10	$ 2

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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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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