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Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	$ 484,369	$ 476,908
Non-accrual loans	484,369	476,908
Loans	1,593	866
Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	471,960	463,914
Non-accrual loans	471,960	463,914
Loans	0	0
Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	5,322	4,049
Non-accrual loans	5,322	4,049
Loans	0	0
Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	7,087	8,945
Non-accrual loans	7,087	8,945
Loans	1,593	866
Construction Portfolio Segment [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	15,551	3,096
Non-accrual loans	15,551	3,096
Loans	0	0
Construction to Permanent Portfolio Segment [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current		10,627
Non-accrual loans		10,627
Loans		0
Performing Financial Instruments [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	7,063	5,469
Performing (accruing) loans current	482,776	476,042
Performing (accruing) loans	475,713	470,573
Non-accrual loans	482,776	476,042
Performing Financial Instruments [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	3,246	3,613
Performing (accruing) loans current	471,960	463,914
Performing (accruing) loans	468,714	460,301
Non-accrual loans	471,960	463,914
Performing Financial Instruments [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	1,041
Performing (accruing) loans current	5,322	4,049
Performing (accruing) loans	5,322	3,008
Non-accrual loans	5,322	4,049
Performing Financial Instruments [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	3,817	815
Performing (accruing) loans current	5,494	8,079
Performing (accruing) loans	1,677	7,264
Non-accrual loans	5,494	8,079
Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	4,323	2,733
Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	506	1,692
Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	1,041
Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	3,817	0
Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	694	904
Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	694	89
Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	815
Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	2,046	1,832
Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	2,046	1,832
Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing (accruing) loans current	15,551	3,096
Performing (accruing) loans	15,551	3,096
Non-accrual loans	15,551	3,096
Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing Financial Instruments [Member] | Construction to Permanent Portfolio Segment [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		0
Performing (accruing) loans current		10,627
Performing (accruing) loans		10,627
Non-accrual loans		10,627
Performing Financial Instruments [Member] | Construction to Permanent Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		0
Performing Financial Instruments [Member] | Construction to Permanent Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		0
Performing Financial Instruments [Member] | Construction to Permanent Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		0
Commercial Portfolio Segment [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	59,752	53,973
Non-accrual loans	59,752	53,973
Loans	0	2
Commercial Portfolio Segment [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	56,768	48,078
Non-accrual loans	56,768	48,078
Loans	0	0
Commercial Portfolio Segment [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	0	121
Non-accrual loans	0	121
Loans	0	0
Commercial Portfolio Segment [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	2,984	5,774
Non-accrual loans	2,984	5,774
Loans	0	2
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	4,145	1,799
Performing (accruing) loans current	59,752	53,971
Performing (accruing) loans	55,607	52,172
Non-accrual loans	59,752	53,971
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,168	1,799
Performing (accruing) loans current	56,768	48,078
Performing (accruing) loans	55,600	46,279
Non-accrual loans	56,768	48,078
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing (accruing) loans current	0	121
Performing (accruing) loans	0	121
Non-accrual loans	0	121
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	2,977	0
Performing (accruing) loans current	2,984	5,772
Performing (accruing) loans	7	5,772
Non-accrual loans	2,984	5,772
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	3,020	1,520
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	43	1,520
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	2,977	0
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	605	0
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	605	0
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	520	279
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	520	279
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Commercial Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Commercial Real Estate Portfolio Segment [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	273,850	254,505
Non-accrual loans	273,850	254,505
Loans	0	138
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	266,018	248,132
Non-accrual loans	266,018	248,132
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	5,322	3,928
Non-accrual loans	5,322	3,928
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	2,510	2,445
Non-accrual loans	2,510	2,445
Loans	0	138
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	840	1,856
Performing (accruing) loans current	273,850	254,367
Performing (accruing) loans	273,010	252,511
Non-accrual loans	273,850	254,367
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing (accruing) loans current	266,018	248,132
Performing (accruing) loans	266,018	248,132
Non-accrual loans	266,018	248,132
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	1,041
Performing (accruing) loans current	5,322	3,928
Performing (accruing) loans	5,322	2,887
Non-accrual loans	5,322	3,928
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	840	815
Performing (accruing) loans current	2,510	2,307
Performing (accruing) loans	1,670	1,492
Non-accrual loans	2,510	2,307
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	840	1,041
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	1,041
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	840	0
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	815
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	815
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Construction Portfolio Segment [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	15,551	3,096
Non-accrual loans	15,551	3,096
Loans	0	0
Construction Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing (accruing) loans current	15,551	3,096
Performing (accruing) loans	15,551	3,096
Non-accrual loans	15,551	3,096
Construction Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Construction Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Construction Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Construction to Permanent Portfolio Segment [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	4,880	10,627
Non-accrual loans	4,880	10,627
Loans	0	0
Construction to Permanent Portfolio Segment [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	4,880
Non-accrual loans	4,880
Loans	0
Construction to Permanent Portfolio Segment [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	0
Non-accrual loans	0
Loans	0
Construction to Permanent Portfolio Segment [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	0
Non-accrual loans	0
Loans	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing (accruing) loans current	4,880	10,627
Performing (accruing) loans	4,880	10,627
Non-accrual loans	4,880	10,627
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Performing (accruing) loans current	4,880
Performing (accruing) loans	4,880
Non-accrual loans	4,880
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Performing (accruing) loans current	0
Performing (accruing) loans	0
Non-accrual loans	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Performing (accruing) loans current	0
Performing (accruing) loans	0
Non-accrual loans	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Construction to Permanent Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Residential Portfolio Segment [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	82,815	108,543
Non-accrual loans	82,815	108,543
Loans	1,590	719
Residential Portfolio Segment [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	81,225	107,824
Non-accrual loans	81,225	107,824
Loans	0	0
Residential Portfolio Segment [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	0
Non-accrual loans	0
Loans	0
Residential Portfolio Segment [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	1,590	719
Non-accrual loans	1,590	719
Loans	1,590	719
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,758	1,812
Performing (accruing) loans current	81,225	107,824
Performing (accruing) loans	79,467	106,012
Non-accrual loans	81,225	107,824
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,758	1,812
Performing (accruing) loans current	81,225	107,824
Performing (accruing) loans	79,467	106,012
Non-accrual loans	81,225	107,824
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Performing (accruing) loans current	0
Performing (accruing) loans	0
Non-accrual loans	0
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing (accruing) loans current	0	0
Performing (accruing) loans	0	0
Non-accrual loans	0	0
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	154	172
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	154	172
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	87	87
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	87	87
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,517	1,553
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	1,517	1,553
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Residential Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Consumer Portfolio Segment [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	47,521	46,164
Non-accrual loans	47,521	46,164
Loans	3	7
Consumer Portfolio Segment [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	47,518	46,157
Non-accrual loans	47,518	46,157
Loans	0	0
Consumer Portfolio Segment [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	0
Non-accrual loans	0
Loans	0
Consumer Portfolio Segment [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	3	7
Non-accrual loans	3	7
Loans	3	7
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	320	2
Performing (accruing) loans current	47,518	46,157
Performing (accruing) loans	47,198	46,155
Non-accrual loans	47,518	46,157
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	320	2
Performing (accruing) loans current	47,518	46,157
Performing (accruing) loans	47,198	46,155
Non-accrual loans	47,518	46,157
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Performing (accruing) loans current	0
Performing (accruing) loans	0
Non-accrual loans	0
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Performing (accruing) loans current	0	0
Performing (accruing) loans	0	0
Non-accrual loans	0	0
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	309	0
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	309	0
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	2	2
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	2	2
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	0
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	9	0
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Pass [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	9	0
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Special Mention [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Substandard [Member]
Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	$ 0	$ 0

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