Note 5 - Loans and Allowance for Loan Losses (Details) - Loans and Allowances for Loan Losses - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal loan balance	$ 361,998	$ 304,943
Accrued interest receivable	1,361	1,036
Net deferred loan origination fees and costs	583	506
Recorded investment in loans	363,942	306,485
Residential Mortgage Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal loan balance	147,933	106,679
Accrued interest receivable	584	368
Net deferred loan origination fees and costs	58	49
Recorded investment in loans	148,575	107,096
Land Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal loan balance	12,962	11,028
Accrued interest receivable	70	48
Net deferred loan origination fees and costs	6	4
Recorded investment in loans	13,038	11,080
Residential Construction Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal loan balance	12,555	8,444
Accrued interest receivable	61	20
Net deferred loan origination fees and costs	0	(1)
Recorded investment in loans	12,616	8,463
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal loan balance	84,493	78,314
Accrued interest receivable	281	186
Net deferred loan origination fees and costs	(46)	(20)
Recorded investment in loans	84,728	78,480
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal loan balance	23,095	28,282
Accrued interest receivable	64	131
Net deferred loan origination fees and costs	(6)	(7)
Recorded investment in loans	23,153	28,406
Home Equity And Second Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal loan balance	38,476	37,513
Accrued interest receivable	130	131
Net deferred loan origination fees and costs	571	481
Recorded investment in loans	39,177	38,125
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal loan balance	42,484	34,683
Accrued interest receivable	171	152
Net deferred loan origination fees and costs	0	0
Recorded investment in loans	$ 42,655	$ 34,835

Represents loans and leases receivable accrued interest.

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- Definition

Represents the loans and leases receivable principal balance.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

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- Definition

Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6378536&loc=d3e10092-111533

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