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Note 4 - Fair Value Measurements (Details) - Assets Measured on a Nonrecurring Basis - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
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Note 4 - Fair Value Measurements (Details) - Assets Measured on a Nonrecurring Basis [Line Items] |  |
Impaired loans | $ 15,647 | $ 13,681
Other real estate owned | 1,400 | 1,400
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] |  |
Note 4 - Fair Value Measurements (Details) - Assets Measured on a Nonrecurring Basis [Line Items] |  |
Impaired loans | 14,836 | 12,848
Other real estate owned | 1,447 | 1,412
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Nonrecurring [Member] |  |
Note 4 - Fair Value Measurements (Details) - Assets Measured on a Nonrecurring Basis [Line Items] |  |
Impaired loans | 14,836 | 12,848
Other real estate owned | $ 1,447 | $ 1,412

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- Definition 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 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953550-111524 + Details
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- Definition Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04(c)(Schedule III)) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5162-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4437-111522 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 + Details
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