Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Credit Risk Exposure of Loans Receivable, by Loan Type and Credit Quality Indicator (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Internal Risk Rating
Total	$ 407,345	$ 423,058	$ 452,383
Commercial Portfolio Segment [Member] \| Pass [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	26,290	23,493
Commercial Portfolio Segment [Member] \| Pass [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	3,944	3,898
Commercial Portfolio Segment [Member] \| Special Mention [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	150	167
Commercial Portfolio Segment [Member] \| Substandard [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	7,465	7,503
Commercial Portfolio Segment [Member]
Internal Risk Rating
Total	37,849	35,061	36,278
Commercial Portfolio Segment [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	33,905	31,163
Commercial Portfolio Segment [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	3,944	3,898
Commercial Real Estate Portfolio Segment [Member] \| Pass [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	199,352	199,118
Commercial Real Estate Portfolio Segment [Member] \| Pass [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	6,471	7,951
Commercial Real Estate Portfolio Segment [Member] \| Special Mention [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	3,926	6,573
Commercial Real Estate Portfolio Segment [Member] \| Special Mention [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	3,096	2,502
Commercial Real Estate Portfolio Segment [Member] \| Substandard [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	3,634	3,690
Commercial Real Estate Portfolio Segment [Member] \| Substandard [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	3,283	3,331
Commercial Real Estate Portfolio Segment [Member]
Internal Risk Rating
Total	219,762	223,165	236,224
Commercial Real Estate Portfolio Segment [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	206,912	209,381
Commercial Real Estate Portfolio Segment [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	12,850	13,784
Real Estate Construction [Member] \| Substandard [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total		60
Real Estate Construction [Member] \| Substandard [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total		200
Real Estate Construction [Member]
Internal Risk Rating
Total		260	3,471
Real Estate Construction [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total		60
Real Estate Construction [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total		200
Real Estate Construction to Permanent [Member] \| Pass [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	12,674	10,106
Real Estate Construction to Permanent [Member] \| Pass [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	1,762
Real Estate Construction to Permanent [Member] \| Substandard [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total		1,197
Real Estate Construction to Permanent [Member]
Internal Risk Rating
Total	14,436	11,303	9,904
Real Estate Construction to Permanent [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	12,674	11,303
Real Estate Construction to Permanent [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	1,762
Residential Real Estate [Member] \| Pass [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	67,516	82,704
Residential Real Estate [Member] \| Pass [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	19,970	20,592
Residential Real Estate [Member] \| Substandard [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	1,549	1,976
Residential Real Estate [Member] \| Substandard [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	482	926
Residential Real Estate [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	69,065	84,680
Residential Real Estate [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	20,452	21,518
Consumer Portfolio Segment [Member] \| Pass [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	43,547	42,542
Consumer Portfolio Segment [Member] \| Pass [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	1,543	3,839
Consumer Portfolio Segment [Member] \| Pass [Member] \| Other LTV [Member]
Internal Risk Rating
Total	659	650
Consumer Portfolio Segment [Member] \| Substandard [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	32	9
Consumer Portfolio Segment [Member] \| Substandard [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total		31
Consumer Portfolio Segment [Member]
Internal Risk Rating
Total	45,781	47,071
Consumer Portfolio Segment [Member] \| Loan to Value Ratio Less than 75 Percent [Member]
Internal Risk Rating
Total	43,579	42,551
Consumer Portfolio Segment [Member] \| Loan to Value Ratio Greater than or Equal to 75 Percent [Member]
Internal Risk Rating
Total	1,543	3,870
Consumer Portfolio Segment [Member] \| Other LTV [Member]
Internal Risk Rating
Total	659	650
Pass [Member]
Internal Risk Rating
Total	383,728	394,893
Special Mention [Member]
Internal Risk Rating
Total	7,172	9,242
Substandard [Member]
Internal Risk Rating
Total	$ 16,445	$ 18,923