Note 5 - Loans (Details) - Allowance for Loan Losses (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	$ 16,243	$ 17,470	$ 16,485	$ 17,825
Provision for loan losses		670		1,020
Loan charge-offs	1,014	1,127	1,490	2,075
Loan recoveries	367	205	601	448
Net loans charged-off	647	922	889	1,627
Allowance for loan losses, end of period	15,596	17,218	15,596	17,218
Allowance for loan losses, individually evaluated for impairment	2,025	3,050	2,025	3,050
Allowance for loan losses, collectively evaluated for impairment	13,571	14,168	13,571	14,168
Loans, gross, individually evaluated for impairment	42,673	46,574	42,673	46,574
Loans, gross, collectively evaluated for impairment	710,376	694,781	710,376	694,781
Loans, gross	753,049	741,355	753,049	741,355	767,513
Commercial Real Estate Loans [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	10,457	11,614	10,565	12,317
Provision for loan losses	174	(328)	222	(598)
Loan charge-offs	618	294	779	758
Loan recoveries	246	37	251	68
Net loans charged-off	372	257	528	690
Allowance for loan losses, end of period	10,259	11,029	10,259	11,029
Allowance for loan losses, individually evaluated for impairment	1,758	2,001	1,758	2,001
Allowance for loan losses, collectively evaluated for impairment	8,501	9,028	8,501	9,028
Loans, gross, individually evaluated for impairment	38,877	40,953	38,877	40,953
Loans, gross, collectively evaluated for impairment	402,293	408,666	402,293	408,666
Loans, gross	441,170	449,619	441,170	449,619	455,452
Single Family Residential [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	3,074	2,949	3,124	3,140
Provision for loan losses	109	352	72	251
Loan charge-offs	85	299	189	432
Loan recoveries	14	16	105	59
Net loans charged-off	71	283	84	373
Allowance for loan losses, end of period	3,112	3,018	3,112	3,018
Allowance for loan losses, individually evaluated for impairment	165	209	165	209
Allowance for loan losses, collectively evaluated for impairment	2,947	2,809	2,947	2,809
Loans, gross, individually evaluated for impairment	1,757	2,797	1,757	2,797
Loans, gross, collectively evaluated for impairment	175,422	167,938	175,422	167,938
Loans, gross	177,179	170,735	177,179	170,735	178,125
Commercial and Industrial [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	1,523	1,890	1,682	1,264
Provision for loan losses	(307)	559	(478)	1,214
Loan charge-offs	145	335	145	374
Loan recoveries	12	25	24	35
Net loans charged-off	133	310	121	339
Allowance for loan losses, end of period	1,083	2,139	1,083	2,139
Allowance for loan losses, individually evaluated for impairment	99	836	99	836
Allowance for loan losses, collectively evaluated for impairment	984	1,303	984	1,303
Loans, gross, individually evaluated for impairment	2,023	2,788	2,023	2,788
Loans, gross, collectively evaluated for impairment	70,237	61,205	70,237	61,205
Loans, gross	72,260	63,993	72,260	63,993	73,078
Consumer [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	1,128	1,013	1,118	1,093
Provision for loan losses	(180)	35	(145)	18
Loan charge-offs	54	64	110	161
Loan recoveries	21	41	52	75
Net loans charged-off	33	23	58	86
Allowance for loan losses, end of period	915	1,025	915	1,025
Allowance for loan losses, individually evaluated for impairment	3	4	3	4
Allowance for loan losses, collectively evaluated for impairment	912	1,021	912	1,021
Loans, gross, individually evaluated for impairment	16	36	16	36
Loans, gross, collectively evaluated for impairment	51,833	48,444	51,833	48,444
Loans, gross	51,849	48,480	51,849	48,480	50,099
All Other [Member]
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]
Allowance for loan losses, beginning of period	61	4	(4)	11
Provision for loan losses	204	52	329	135
Loan charge-offs	112	135	267	350
Loan recoveries	74	86	169	211
Net loans charged-off	38	49	98	139
Allowance for loan losses, end of period	227	7	227	7
Allowance for loan losses, individually evaluated for impairment	0	0	0	0
Allowance for loan losses, collectively evaluated for impairment	227	7	227	7
Loans, gross, individually evaluated for impairment	0	0	0	0
Loans, gross, collectively evaluated for impairment	10,591	8,528	10,591	8,528
Loans, gross	$ 10,591	$ 8,528	$ 10,591	$ 8,528	$ 10,759