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Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time (USD $) | 3 Months Ended | 12 Months Ended
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Mar. 31, 2014 | Dec. 31, 2013
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items] |  |
Securities-Less than 12 months-Fair Value | $ 45,542,000 | $ 58,767,000
Securities-Less than 12 months-Unrealized Loss | (2,555,000) | (5,833,000)
Securities-More than 12 months-Fair Value | 42,828,000 | 29,679,000
Securities-More than 12 months-Unrealized Loss | (5,096,000) | (4,267,000)
Securities- Fair Value | 88,370,000 | 88,446,000
Securities- Unrealized Loss | (7,651,000) | (10,100,000)
US Government Agencies Debt Securities [Member] |  |
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items] |  |
Securities-Less than 12 months-Fair Value | 44,172,000 | 57,117,000
Securities-Less than 12 months-Unrealized Loss | (2,532,000) | (5,798,000)
Securities-More than 12 months-Fair Value | 42,828,000 | 29,679,000
Securities-More than 12 months-Unrealized Loss | (5,096,000) | (4,267,000)
Securities- Fair Value | 87,000,000 | 86,796,000
Securities- Unrealized Loss | (7,628,000) | (10,065,000)
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items] |  |
Securities-Less than 12 months-Fair Value | 0 | 0
Securities-Less than 12 months-Unrealized Loss | 0 | 0
Securities-More than 12 months-Fair Value | 0 | 0
Securities-More than 12 months-Unrealized Loss | 0 | 0
Securities- Fair Value | 0 | 0
Securities- Unrealized Loss | 0 | 0
Municipal General Obligation Bonds [Member] |  |
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items] |  |
Securities-Less than 12 months-Fair Value | 0 | 295,000
Securities-Less than 12 months-Unrealized Loss | 0 | (4,000)
Securities-More than 12 months-Fair Value | 0 | 0
Securities-More than 12 months-Unrealized Loss | 0 | 0
Securities- Fair Value | 0 | 295,000
Securities- Unrealized Loss | 0 | (4,000)
Municipal Revenue Bonds [Member] |  |
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items] |  |
Securities-Less than 12 months-Fair Value | 0 | 0
Securities-Less than 12 months-Unrealized Loss | 0 | 0
Securities-More than 12 months-Fair Value | 0 | 0
Securities-More than 12 months-Unrealized Loss | 0 | 0
Securities- Fair Value | 0 | 0
Securities- Unrealized Loss | 0 | 0
Mutual Funds [Member] |  |
Note 2 - Securities (Details) - Securities with Unrealized Losses Aggregated by Investment Category and Length of Time [Line Items] |  |
Securities-Less than 12 months-Fair Value | 1,370,000 | 1,355,000
Securities-Less than 12 months-Unrealized Loss | (23,000) | (31,000)
Securities-More than 12 months-Fair Value | 0 | 0
Securities-More than 12 months-Unrealized Loss | 0 | 0
Securities- Fair Value | 1,370,000 | 1,355,000
Securities- Unrealized Loss | $ (23,000) | $ (31,000)

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- Definition Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition Amount of unrealized loss on securities classified as available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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