Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	$ 485,183	$ 484,369
Non-accrual loans	485,183	484,369
Loans	5,409	1,593
Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	472,844	471,960
Non-accrual loans	472,844	471,960
Loans	2	0
Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	5,282	5,322
Non-accrual loans	5,282	5,322
Loans	0	0
Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	7,059	7,087
Non-accrual loans	7,059	7,087
Loans	5,409	1,593
Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	6,377	7,063
Performing (accruing) loans current	479,774	482,776
Performing (accruing) loans	473,397	475,713
Non-accrual loans	479,774	482,776
Performing Financial Instruments [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	5,753	3,246
Performing (accruing) loans current	472,842	471,960
Performing (accruing) loans	467,089	468,714
Non-accrual loans	472,842	471,960
Performing Financial Instruments [Member] \| Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	624	0
Performing (accruing) loans current	5,282	5,322
Performing (accruing) loans	4,658	5,322
Non-accrual loans	5,282	5,322
Performing Financial Instruments [Member] \| Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	3,817
Performing (accruing) loans current	1,650	5,494
Performing (accruing) loans	1,650	1,677
Non-accrual loans	1,650	5,494
Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	5,753	4,323
Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	5,753	506
Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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, 30 to 59 Days Past Due [Member] \| Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	3,817
Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	624	694
Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	694
Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member] \| Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	624	0
Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member] \| Substandard [Member]
Note 3 - Loans Receivable 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]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	2,046
Performing Financial Instruments [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	2,046
Performing Financial Instruments [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	21,748	15,551
Non-accrual loans	21,748	15,551
Loans	0	0
Construction Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Pass [Member]
Note 3 - Loans Receivable 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	21,748	15,551
Performing (accruing) loans	21,748	15,551
Non-accrual loans	21,748	15,551
Construction Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable 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] \| Pass [Member]
Note 3 - Loans Receivable 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] \| Pass [Member]
Note 3 - Loans Receivable 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] \| Pass [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable 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] \| Pass [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable 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] \| Pass [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable 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] \| Pass [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable 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] \| Pass [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	61,027	59,752
Non-accrual loans	61,027	59,752
Loans	2,977	0
Commercial Portfolio Segment [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	58,045	56,768
Non-accrual loans	58,045	56,768
Loans	0	0
Commercial Portfolio Segment [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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	0
Commercial Portfolio Segment [Member] \| Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	2,982	2,984
Non-accrual loans	2,982	2,984
Loans	2,977	0
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	4,145
Performing (accruing) loans current	58,050	59,752
Performing (accruing) loans	58,050	55,607
Non-accrual loans	58,050	59,752
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	1,168
Performing (accruing) loans current	58,045	56,768
Performing (accruing) loans	58,045	55,600
Non-accrual loans	58,045	56,768
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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
Performing (accruing) loans	0
Non-accrual loans	0
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	2,977
Performing (accruing) loans current	5	2,984
Performing (accruing) loans	5	7
Non-accrual loans	5	2,984
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	3,020
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	43
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	2,977
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	605
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	605
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	520
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	520
Commercial Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	243,823	245,828
Non-accrual loans	243,823	245,828
Loans	840	0
Commercial Real Estate Portfolio Segment [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	236,056	237,996
Non-accrual loans	236,056	237,996
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	5,282	5,322
Non-accrual loans	5,282	5,322
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] \| Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	2,485	2,510
Non-accrual loans	2,485	2,510
Loans	840	0
Commercial Real Estate Portfolio Segment [Member] \| Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	6,374	840
Performing (accruing) loans current	242,983	245,828
Performing (accruing) loans	236,609	244,988
Non-accrual loans	242,983	245,828
Commercial Real Estate Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	5,750	0
Performing (accruing) loans current	236,056	237,996
Performing (accruing) loans	230,306	237,996
Non-accrual loans	236,056	237,996
Commercial Real Estate Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Special Mention [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	624	0
Performing (accruing) loans current	5,282	5,322
Performing (accruing) loans	4,658	5,322
Non-accrual loans	5,282	5,322
Commercial Real Estate Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	840
Performing (accruing) loans current	1,645	2,510
Performing (accruing) loans	1,645	1,670
Non-accrual loans	1,645	2,510
Commercial Real Estate Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	5,750	840
Commercial Real Estate Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	5,750	0
Commercial Real Estate Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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] \| Substandard [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	840
Commercial Real Estate Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	624	0
Commercial Real Estate Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	624	0
Commercial Real Estate Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member] \| Substandard [Member]
Note 3 - Loans Receivable 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]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	21,748	15,551
Non-accrual loans	21,748	15,551
Loans		0
Construction Portfolio Segment [Member] \| Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		0
Performing (accruing) loans current		15,551
Performing (accruing) loans		15,551
Non-accrual loans		15,551
Construction Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		0
Construction Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		0
Construction Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due		0
Construction Portfolio Segment [Member] \| Construction Portfolio Segment [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	21,748
Non-accrual loans	21,748
Loans	0
Construction Portfolio Segment [Member] \| Construction Portfolio Segment [Member] \| Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Performing (accruing) loans current	21,748
Performing (accruing) loans	21,748
Non-accrual loans	21,748
Construction Portfolio Segment [Member] \| Construction Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Construction Portfolio Segment [Member] \| Construction Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Construction Portfolio Segment [Member] \| Construction Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 3 - Loans Receivable 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]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	3,638	4,880
Non-accrual loans	3,638	4,880
Loans	0
Construction to Permanent Portfolio Segment [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	3,638
Non-accrual loans	3,638
Loans	0
Construction to Permanent Portfolio Segment [Member] \| Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Performing (accruing) loans current	3,638
Performing (accruing) loans	3,638
Non-accrual loans	3,638
Construction to Permanent Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0
Performing (accruing) loans current	3,638
Performing (accruing) loans	3,638
Non-accrual loans	3,638
Construction to Permanent Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable 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] \| Pass [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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] \| Pass [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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] \| Pass [Member]
Note 3 - Loans Receivable 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] \| Construction to Permanent Portfolio Segment [Member]
Note 3 - Loans Receivable 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] \| Construction to Permanent Portfolio Segment [Member] \| Performing Financial Instruments [Member]
Note 3 - Loans Receivable 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] \| Construction to Permanent Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Note 3 - Loans Receivable 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] \| Construction to Permanent Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Note 3 - Loans Receivable 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] \| Construction to Permanent Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	108,111	110,837
Non-accrual loans	108,111	110,837
Loans	1,590	1,590
Residential Portfolio Segment [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	106,521	109,247
Non-accrual loans	106,521	109,247
Loans	0	0
Residential Portfolio Segment [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans current	1,590	1,590
Non-accrual loans	1,590	1,590
Loans	1,590	1,590
Residential Portfolio Segment [Member] \| Performing Financial Instruments [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	1,758
Performing (accruing) loans current	106,521	109,247
Performing (accruing) loans	106,521	107,489
Non-accrual loans	106,521	109,247
Residential Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	1,758
Performing (accruing) loans current	106,521	109,247
Performing (accruing) loans	106,521	107,489
Non-accrual loans	106,521	109,247
Residential Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	154
Residential Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	154
Residential Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	87
Residential Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	87
Residential Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	1,517
Residential Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Pass [Member]
Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]
Performing (accruing) loans past due	0	1,517
Residential Portfolio Segment [Member] \| Performing Financial Instruments [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Special Mention [Member]
Note 3 - Loans Receivable 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 3 - Loans Receivable 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 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans - USD ($)
$ in Thousands

Mar. 31, 2016

Dec. 31, 2015

Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Delinquency Status of Performing (Accruing) Loans [Line Items]

Performing (accruing) loans current

$ 485,183

$ 484,369

Non-accrual loans

485,183

484,369

Loans

5,409