Note 3 - Loans and Allowance for Loan Losses (Details) - Impaired Loans (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Loans with no related allowance recorded:
Recorded investment with no related allowance recorded	$ 3,090		$ 3,005
Unpaid principal balance with no related allowance recorded	3,475		3,359
Related allowance with no related allowance recorded	0		0
Average recorded investment with no related allowance recorded	3,126	3,731
Interest income recognized with no related allowance recorded	24	28
Loans with an allowance recorded:
Recorded investment with an allowance recorded	364		2,034
Unpaid principal balance with an allowance recorded	441		2,376
Related allowance	88		1,351
Average recorded investment with an allowance recorded	1,200	3,024
Interest income recognized with an allowance recorded	0	0
Total:
Recorded investment	3,454		5,039
Unpaid principal balance	3,916		5,735
Related allowance	88		1,351
Average recorded investment	4,326	6,755
Interest income recognized	24	28
Residential Mortgage Segment [Member]
Loans with no related allowance recorded:
Recorded investment with no related allowance recorded	1,205		1,141
Unpaid principal balance with no related allowance recorded	1,537		1,446
Related allowance with no related allowance recorded	0		0
Average recorded investment with no related allowance recorded	1,245	1,482
Interest income recognized with no related allowance recorded	5	10
Loans with an allowance recorded:
Recorded investment with an allowance recorded	210		270
Unpaid principal balance with an allowance recorded	245		304
Related allowance	44		47
Average recorded investment with an allowance recorded	240	357
Interest income recognized with an allowance recorded	0	0
Total:
Recorded investment	1,415		1,411
Unpaid principal balance	1,782		1,750
Related allowance	44		47
Average recorded investment	1,485	1,839
Interest income recognized	5	10
Land Segment [Member]
Loans with no related allowance recorded:
Recorded investment with no related allowance recorded	19		16
Unpaid principal balance with no related allowance recorded	21		18
Related allowance with no related allowance recorded	0		0
Average recorded investment with no related allowance recorded	18	119
Interest income recognized with no related allowance recorded	0	0
Loans with an allowance recorded:
Recorded investment with an allowance recorded	0		0
Unpaid principal balance with an allowance recorded	0		0
Related allowance	0		0
Average recorded investment with an allowance recorded	0	0
Interest income recognized with an allowance recorded	0	0
Total:
Recorded investment	19		16
Unpaid principal balance	21		18
Related allowance	0		0
Average recorded investment	18	119
Interest income recognized	0	0
Residential Construction Segment [Member]
Loans with no related allowance recorded:
Recorded investment with no related allowance recorded	0		0
Unpaid principal balance with no related allowance recorded	0		0
Related allowance with no related allowance recorded	0		0
Average recorded investment with no related allowance recorded	0	0
Interest income recognized with no related allowance recorded	0	0
Loans with an allowance recorded:
Recorded investment with an allowance recorded	0		0
Unpaid principal balance with an allowance recorded	0		0
Related allowance	0		0
Average recorded investment with an allowance recorded	0	0
Interest income recognized with an allowance recorded	0	0
Total:
Recorded investment	0		0
Unpaid principal balance	0		0
Related allowance	0		0
Average recorded investment	0	0
Interest income recognized	0	0
Commercial Real Estate Portfolio Segment [Member]
Loans with no related allowance recorded:
Recorded investment with no related allowance recorded	1,774		1,777
Unpaid principal balance with no related allowance recorded	1,808		1,808
Related allowance with no related allowance recorded	0		0
Average recorded investment with no related allowance recorded	1,781	1,715
Interest income recognized with no related allowance recorded	19	17
Loans with an allowance recorded:
Recorded investment with an allowance recorded	39		42
Unpaid principal balance with an allowance recorded	63		65
Related allowance	9		11
Average recorded investment with an allowance recorded	41	940
Interest income recognized with an allowance recorded	0	0
Total:
Recorded investment	1,813		1,819
Unpaid principal balance	1,871		1,873
Related allowance	9		11
Average recorded investment	1,822	2,655
Interest income recognized	19	17
Commercial Portfolio Segment [Member]
Loans with no related allowance recorded:
Recorded investment with no related allowance recorded	26		0
Unpaid principal balance with no related allowance recorded	26		0
Related allowance with no related allowance recorded	0		0
Average recorded investment with no related allowance recorded	13	189
Interest income recognized with no related allowance recorded	0	0
Loans with an allowance recorded:
Recorded investment with an allowance recorded	35		1,642
Unpaid principal balance with an allowance recorded	35		1,909
Related allowance	35		1,293
Average recorded investment with an allowance recorded	839	1,709
Interest income recognized with an allowance recorded	0	0
Total:
Recorded investment	61		1,642
Unpaid principal balance	61		1,909
Related allowance	35		1,293
Average recorded investment	852	1,898
Interest income recognized	0	0
Home Equity And Second Mortgage [Member]
Loans with no related allowance recorded:
Recorded investment with no related allowance recorded	66		71
Unpaid principal balance with no related allowance recorded	83		87
Related allowance with no related allowance recorded	0		0
Average recorded investment with no related allowance recorded	69	226
Interest income recognized with no related allowance recorded	0	1
Loans with an allowance recorded:
Recorded investment with an allowance recorded	80		80
Unpaid principal balance with an allowance recorded	98		98
Related allowance	0		0
Average recorded investment with an allowance recorded	80	18
Interest income recognized with an allowance recorded	0	0
Total:
Recorded investment	146		151
Unpaid principal balance	181		185
Related allowance	0		0
Average recorded investment	149	244
Interest income recognized	0	1
Other Consumer Loan [Member]
Loans with no related allowance recorded:
Recorded investment with no related allowance recorded	0		0
Unpaid principal balance with no related allowance recorded	0		0
Related allowance with no related allowance recorded	0		0
Average recorded investment with no related allowance recorded	0	0
Interest income recognized with no related allowance recorded	0	0
Loans with an allowance recorded:
Recorded investment with an allowance recorded	0		0
Unpaid principal balance with an allowance recorded	0		0
Related allowance	0		0
Average recorded investment with an allowance recorded	0	0
Interest income recognized with an allowance recorded	0	0
Total:
Recorded investment	0		0
Unpaid principal balance	0		0
Related allowance	0		0
Average recorded investment	0	0
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

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-SubTopic 10

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