Note 4 - Loans and Allowance for Loan Losses (Details) - Impaired Loans (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Loans with no related allowance recorded:
Loans with no related allowance recorded, recorded investment	$ 3,005	$ 3,791
Loans with no related allowance recorded, unpaid principal balance	3,359	4,120
Loans with no related allowance recorded, related allowance	0	0
Loans with no related allowance recorded, average recorded investment	3,327	3,417
Loans with no related allowance recorded, interest income recognized	98	104
Loans with an allowance recorded:
Loans with an allowance recorded, recorded investment	2,034	3,129
Loans with an allowance recorded, unpaid principal balance	2,376	3,466
Loans with an allowance recorded, related allowance	1,351	1,529
Loans with an allowance recorded, average recorded investment	2,768	3,581
Loans with an allowance recorded, interest income recognized	0	2
Total:
Loans, recorded investment	5,039	6,920
Loans, unpaid principal balance	5,735	7,586
Loans, related allowance	1,351	1,529
Loans, average recorded investment	6,095	6,998
Loans, interest income recognized	98	106
Residential Mortgage Segment [Member]
Loans with no related allowance recorded:
Loans with no related allowance recorded, recorded investment	1,141	1,591
Loans with no related allowance recorded, unpaid principal balance	1,446	1,869
Loans with no related allowance recorded, related allowance	0	0
Loans with no related allowance recorded, average recorded investment	1,293	1,508
Loans with no related allowance recorded, interest income recognized	26	32
Loans with an allowance recorded:
Loans with an allowance recorded, recorded investment	270	449
Loans with an allowance recorded, unpaid principal balance	304	487
Loans with an allowance recorded, related allowance	47	112
Loans with an allowance recorded, average recorded investment	369	624
Loans with an allowance recorded, interest income recognized	0	2
Total:
Loans, recorded investment	1,411	2,040
Loans, unpaid principal balance	1,750	2,356
Loans, related allowance	47	112
Loans, average recorded investment	1,662	2,132
Loans, interest income recognized	26	34
Land Segment [Member]
Loans with no related allowance recorded:
Loans with no related allowance recorded, recorded investment	16	120
Loans with no related allowance recorded, unpaid principal balance	18	131
Loans with no related allowance recorded, related allowance	0	0
Loans with no related allowance recorded, average recorded investment	96	124
Loans with no related allowance recorded, interest income recognized	0	0
Loans with an allowance recorded:
Loans with an allowance recorded, recorded investment	0	0
Loans with an allowance recorded, unpaid principal balance	0	0
Loans with an allowance recorded, related allowance	0	0
Loans with an allowance recorded, average recorded investment	1	1
Loans with an allowance recorded, interest income recognized	0	0
Total:
Loans, recorded investment	16	120
Loans, unpaid principal balance	18	131
Loans, related allowance	0	0
Loans, average recorded investment	97	125
Loans, interest income recognized	0	0
Residential Construction Segment [Member]
Loans with no related allowance recorded:
Loans with no related allowance recorded, recorded investment	0	0
Loans with no related allowance recorded, unpaid principal balance	0	0
Loans with no related allowance recorded, related allowance	0	0
Loans with no related allowance recorded, average recorded investment	52	173
Loans with no related allowance recorded, interest income recognized	0	0
Loans with an allowance recorded:
Loans with an allowance recorded, recorded investment	0	0
Loans with an allowance recorded, unpaid principal balance	0	0
Loans with an allowance recorded, related allowance	0	0
Loans with an allowance recorded, average recorded investment	0	0
Loans with an allowance recorded, interest income recognized	0	0
Total:
Loans, recorded investment	0	0
Loans, unpaid principal balance	0	0
Loans, related allowance	0	0
Loans, average recorded investment	52	173
Loans, interest income recognized	0	0
Commercial Real Estate Portfolio Segment [Member]
Loans with no related allowance recorded:
Loans with no related allowance recorded, recorded investment	1,777	1,637
Loans with no related allowance recorded, unpaid principal balance	1,808	1,643
Loans with no related allowance recorded, related allowance	0	0
Loans with no related allowance recorded, average recorded investment	1,626	1,410
Loans with no related allowance recorded, interest income recognized	70	63
Loans with an allowance recorded:
Loans with an allowance recorded, recorded investment	42	949
Loans with an allowance recorded, unpaid principal balance	65	1,048
Loans with an allowance recorded, related allowance	11	145
Loans with an allowance recorded, average recorded investment	656	1,108
Loans with an allowance recorded, interest income recognized	0	0
Total:
Loans, recorded investment	1,819	2,586
Loans, unpaid principal balance	1,873	2,691
Loans, related allowance	11	145
Loans, average recorded investment	2,282	2,518
Loans, interest income recognized	70	63
Commercial Portfolio Segment [Member]
Loans with no related allowance recorded:
Loans with no related allowance recorded, recorded investment	0	189
Loans with no related allowance recorded, unpaid principal balance	0	209
Loans with no related allowance recorded, related allowance	0	0
Loans with no related allowance recorded, average recorded investment	113	38
Loans with no related allowance recorded, interest income recognized	0	4
Loans with an allowance recorded:
Loans with an allowance recorded, recorded investment	1,642	1,709
Loans with an allowance recorded, unpaid principal balance	1,909	1,909
Loans with an allowance recorded, related allowance	1,293	1,259
Loans with an allowance recorded, average recorded investment	1,696	1,801
Loans with an allowance recorded, interest income recognized	0	0
Total:
Loans, recorded investment	1,642	1,898
Loans, unpaid principal balance	1,909	2,118
Loans, related allowance	1,293	1,259
Loans, average recorded investment	1,809	1,839
Loans, interest income recognized	0	4
Home Equity And Second Mortgage [Member]
Loans with no related allowance recorded:
Loans with no related allowance recorded, recorded investment	71	254
Loans with no related allowance recorded, unpaid principal balance	87	268
Loans with no related allowance recorded, related allowance	0	0
Loans with no related allowance recorded, average recorded investment	147	164
Loans with no related allowance recorded, interest income recognized	2	5
Loans with an allowance recorded:
Loans with an allowance recorded, recorded investment	80	22
Loans with an allowance recorded, unpaid principal balance	98	22
Loans with an allowance recorded, related allowance	0	13
Loans with an allowance recorded, average recorded investment	46	47
Loans with an allowance recorded, interest income recognized	0	0
Total:
Loans, recorded investment	151	276
Loans, unpaid principal balance	185	290
Loans, related allowance	0	13
Loans, average recorded investment	193	211
Loans, interest income recognized	2	5
Other Consumer Loan [Member]
Loans with no related allowance recorded:
Loans with no related allowance recorded, recorded investment	0	0
Loans with no related allowance recorded, unpaid principal balance	0	0
Loans with no related allowance recorded, related allowance	0	0
Loans with no related allowance recorded, average recorded investment	0	0
Loans with no related allowance recorded, interest income recognized	0	0
Loans with an allowance recorded:
Loans with an allowance recorded, recorded investment	0	0
Loans with an allowance recorded, unpaid principal balance	0	0
Loans with an allowance recorded, related allowance	0	0
Loans with an allowance recorded, average recorded investment	0	0
Loans with an allowance recorded, interest income recognized	0	0
Total:
Loans, recorded investment	0	0
Loans, unpaid principal balance	0	0
Loans, related allowance	0	0
Loans, average recorded investment	0	0
Loans, interest income recognized	$ 0	$ 0

Amount of allowance for credit losses related to recorded investment.

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

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+ References

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-Publisher FASB

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-Topic 310

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