Note 4 - Loans and Allowance for Loan Losses (Details) - Impaired Loans (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Real estate - residential mortgage:
Specific allowance	$ 2,006		$ 2,006		$ 1,367
Real estate - residential mortgage:
Recorded balance	17,847		17,847		17,277
Unpaid principal balance	19,421		19,421		18,574
Specific allowance	2,006		2,006		1,367
Average investment in impaired loans	17,434	29,849	17,459	28,305
Interest income recognized	5	28	45	92
One to Four Family Units [Member]
Real estate - residential mortgage:
Recorded balance	2,046		2,046		2,245
Unpaid principal balance	2,161		2,161		2,271
Average investment in impaired loans	1,782	2,601	2,028	1,807
Interest income recognized	1	5	4	17
Real estate - residential mortgage:
Recorded balance	241		241		115
Unpaid principal balance	241		241		130
Specific allowance	1		1		90
Average investment in impaired loans	599	106	296	334
Real estate - residential mortgage:
Recorded balance	2,287		2,287		2,360
Unpaid principal balance	2,402		2,402		2,401
Specific allowance	1		1		90
Average investment in impaired loans	2,381	2,707	2,324	2,141
Interest income recognized	1	5	4	17
Real Estate Construction [Member]
Real estate - residential mortgage:
Recorded balance	277		277		5,015
Unpaid principal balance	277		277		5,575
Average investment in impaired loans	1,703	4,953	4,044	3,046
Real estate - residential mortgage:
Recorded balance	5,101		5,101		1,260
Unpaid principal balance	5,621		5,621		1,260
Specific allowance	1,135		1,135		608
Average investment in impaired loans	3,829	770	1,849	4,111
Real estate - residential mortgage:
Recorded balance	5,378		5,378		6,275
Unpaid principal balance	5,898		5,898		6,835
Specific allowance	1,135		1,135		608
Average investment in impaired loans	5,532	5,723	5,893	7,157
Real Estate Commercial [Member]
Real estate - residential mortgage:
Recorded balance	4,862		4,862		2,430
Unpaid principal balance	5,187		5,187		2,755
Average investment in impaired loans	5,091	4,273	4,458	4,626
Interest income recognized	4	18	40	49
Real estate - residential mortgage:
Recorded balance					3,243
Unpaid principal balance					3,243
Specific allowance					180
Average investment in impaired loans		9,085	748	7,800
Real estate - residential mortgage:
Recorded balance	4,862		4,862		5,673
Unpaid principal balance	5,187		5,187		5,998
Specific allowance					180
Average investment in impaired loans	5,091	13,358	5,206	12,426
Interest income recognized	4	18	40	49
Commercial Loans [Member]
Real estate - residential mortgage:
Recorded balance	1,100		1,100		318
Unpaid principal balance	1,403		1,403		689
Average investment in impaired loans	1,343	2,719	878	2,342
Interest income recognized		4	1	15
Real estate - residential mortgage:
Recorded balance	3,807		3,807		2,237
Unpaid principal balance	4,118		4,118		2,237
Specific allowance	826		826		441
Average investment in impaired loans	2,712	4,774	2,741	3,693
Real estate - residential mortgage:
Recorded balance	4,907		4,907		2,555
Unpaid principal balance	5,521		5,521		2,926
Specific allowance	826		826		441
Average investment in impaired loans	4,055	7,493	3,619	6,035
Interest income recognized		4	1	15
Consumer and Other Loans [Member]
Real estate - residential mortgage:
Recorded balance	133		133		103
Unpaid principal balance	133		133		103
Average investment in impaired loans	123	151	107	230
Interest income recognized		1		11
Real estate - residential mortgage:
Recorded balance	280		280		311
Unpaid principal balance	280		280		311
Specific allowance	44		44		48
Average investment in impaired loans	252	417	310	316
Real estate - residential mortgage:
Recorded balance	413		413		414
Unpaid principal balance	413		413		414
Specific allowance	44		44		48
Average investment in impaired loans	375	568	417	546
Interest income recognized		$ 1		$ 11

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- Definition

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

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 17

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5258-111524

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953550-111524

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