Note 4 - Loans and Allowance for Loan Losses (Details) - Impaired Loans (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Real estate - residential mortgage:
Specific allowance	$ 1,099		$ 1,099		$ 1,367
Real estate - residential mortgage:
Recorded balance	17,776		17,776		17,277
Unpaid principal balance	19,820		19,820		18,574
Specific allowance	1,099		1,099		1,367
Average investment in impaired loans	17,652	31,062	17,473	27,533
Interest income recognized	14	32	40	64
One to Four Family Units [Member]
Real estate - residential mortgage:
Recorded balance	2,234		2,234		2,245
Unpaid principal balance	2,394		2,394		2,271
Average investment in impaired loans	2,164	1,410	2,152	1,409
Interest income recognized	1	7	3	12
Real estate - residential mortgage:
Recorded balance	246		246		115
Unpaid principal balance	246		246		130
Specific allowance	5		5		90
Average investment in impaired loans	181	290	144	447
Real estate - residential mortgage:
Recorded balance	2,480		2,480		2,360
Unpaid principal balance	2,640		2,640		2,401
Specific allowance	5		5		90
Average investment in impaired loans	2,345	1,700	2,296	1,856
Interest income recognized	1	7	3	12
Real Estate Construction [Member]
Real estate - residential mortgage:
Recorded balance	5,464		5,464		5,015
Unpaid principal balance	6,409		6,409		5,575
Average investment in impaired loans	5,320	3,200	5,214	2,093
Real estate - residential mortgage:
Recorded balance	470		470		1,260
Unpaid principal balance	470		470		1,260
Specific allowance	152		152		608
Average investment in impaired loans	613	4,543	859	5,782
Real estate - residential mortgage:
Recorded balance	5,934		5,934		6,275
Unpaid principal balance	6,879		6,879		6,835
Specific allowance	152		152		608
Average investment in impaired loans	5,933	7,743	6,073	7,875
Real Estate Commercial [Member]
Real estate - residential mortgage:
Recorded balance	5,127		5,127		2,430
Unpaid principal balance	5,452		5,452		2,755
Average investment in impaired loans	5,095	3,956	4,142	4,803
Interest income recognized	13	18	36	31
Real estate - residential mortgage:
Recorded balance					3,243
Unpaid principal balance					3,243
Specific allowance					180
Average investment in impaired loans		10,803	1,122	7,158
Real estate - residential mortgage:
Recorded balance	5,127		5,127		5,673
Unpaid principal balance	5,452		5,452		5,998
Specific allowance					180
Average investment in impaired loans	5,095	14,759	5,264	11,961
Interest income recognized	13	18	36	31
Commercial Loans [Member]
Real estate - residential mortgage:
Recorded balance	1,493		1,493		318
Unpaid principal balance	1,796		1,796		689
Average investment in impaired loans	648	2,403	646	2,153
Interest income recognized		5	1	11
Real estate - residential mortgage:
Recorded balance	2,342		2,342		2,237
Unpaid principal balance	2,653		2,653		2,237
Specific allowance	894		894		441
Average investment in impaired loans	3,230	4,035	2,756	3,153
Real estate - residential mortgage:
Recorded balance	3,835		3,835		2,555
Unpaid principal balance	4,449		4,449		2,926
Specific allowance	894		894		441
Average investment in impaired loans	3,878	6,438	3,402	5,306
Interest income recognized		5	1	11
Consumer and Other Loans [Member]
Real estate - residential mortgage:
Recorded balance	118		118		103
Unpaid principal balance	118		118		103
Average investment in impaired loans	96	157	99	270
Interest income recognized		2		10
Real estate - residential mortgage:
Recorded balance	282		282		311
Unpaid principal balance	282		282		311
Specific allowance	48		48		48
Average investment in impaired loans	305	265	339	265
Real estate - residential mortgage:
Recorded balance	400		400		414
Unpaid principal balance	400		400		414
Specific allowance	48		48		48
Average investment in impaired loans	401	422	438	535
Interest income recognized		$ 2		$ 10

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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

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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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