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Note 2 - Securities - Investments in an Unrealized Loss Position That Were Temporarily Impaired (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Less than 12 months, fair value, available for sale securities |  | $ 30,111
Less than 12 months, unrealized (loss), available for sale securities |  | (240)
12 months or more, fair value, available for sale securities | 35,385 | 54,779
12 months or more, unrealized (loss), available for sale securities | (319) | (2,125)
Total, fair value, available for sale securities | 35,385 | 84,890
Total, unrealized (loss), available for sale securities | (319) | (2,365)
Less than 12 months, fair value, held to maturity securities |  | 5,326
Less than 12 months, unrealized (loss), held to maturity securities |  | (37)
12 months or more, fair value, held to maturity securities | 9,761 | 32,666
12 months or more, unrealized (loss), held to maturity securities | (121) | (1,006)
Total, fair value, held to maturity securities | 9,761 | 37,992
Total, unrealized (loss), held to maturity securities | (121) | (1,043)
Less than 12 months, fair value, total securities |  | 35,437
Less than 12 months, unrealized (loss), total securities |  | (277)
12 months or more, fair value, total securities | 45,146 | 87,445
12 months or more, unrealized (loss), total securities | (440) | (3,131)
Total, fair value, total securities | 45,146 | 122,882
Total, unrealized (loss), total securities | (440) | (3,408)
Securities held to maturity: |  |
Less than 12 months, fair value, held to maturity securities |  | 5,326
Less than 12 months, unrealized (loss), held to maturity securities |  | (37)
12 months or more, fair value, held to maturity securities | 9,761 | 32,666
12 months or more, unrealized (loss), held to maturity securities | (121) | (1,006)
Total, fair value, held to maturity securities | 9,761 | 37,992
Total, unrealized (loss), held to maturity securities | (121) | (1,043)
Less than 12 months, fair value, total securities |  | 35,437
Less than 12 months, unrealized (loss), total securities |  | (277)
12 months or more, fair value, total securities | 45,146 | 87,445
12 months or more, unrealized (loss), total securities | (440) | (3,131)
Total, fair value, total securities | 45,146 | 122,882
Total, unrealized (loss), total securities | (440) | (3,408)
US Agency and Mortgage-backed Securities [Member] |  |
Less than 12 months, fair value, available for sale securities |  | 26,350
Less than 12 months, unrealized (loss), available for sale securities |  | (215)
12 months or more, fair value, available for sale securities | 34,035 | 49,652
12 months or more, unrealized (loss), available for sale securities | (304) | (1,851)
Total, fair value, available for sale securities | 34,035 | 76,002
Total, unrealized (loss), available for sale securities | (304) | (2,066)
Less than 12 months, fair value, held to maturity securities |  |
Less than 12 months, unrealized (loss), held to maturity securities |  |
12 months or more, fair value, held to maturity securities | 9,761 | 26,551
12 months or more, unrealized (loss), held to maturity securities | (121) | (869)
Total, fair value, held to maturity securities | 9,761 | 26,551
Total, unrealized (loss), held to maturity securities | (121) | (869)
Securities held to maturity: |  |
Less than 12 months, fair value, held to maturity securities |  |
Less than 12 months, unrealized (loss), held to maturity securities |  |
12 months or more, fair value, held to maturity securities | 9,761 | 26,551
12 months or more, unrealized (loss), held to maturity securities | (121) | (869)
Total, fair value, held to maturity securities | 9,761 | 26,551
Total, unrealized (loss), held to maturity securities | (121) | (869)
Municipal Bonds [Member] |  |
Less than 12 months, fair value, available for sale securities |  | 3,761
Less than 12 months, unrealized (loss), available for sale securities |  | (25)
12 months or more, fair value, available for sale securities | 1,350 | 5,127
12 months or more, unrealized (loss), available for sale securities | (15) | (274)
Total, fair value, available for sale securities | 1,350 | 8,888
Total, unrealized (loss), available for sale securities | $ (15) | (299)
Less than 12 months, fair value, held to maturity securities |  | 5,326
Less than 12 months, unrealized (loss), held to maturity securities |  | (37)
12 months or more, fair value, held to maturity securities |  | 6,115
12 months or more, unrealized (loss), held to maturity securities |  | (137)
Total, fair value, held to maturity securities |  | 11,441
Total, unrealized (loss), held to maturity securities |  | (174)
Securities held to maturity: |  |
Less than 12 months, fair value, held to maturity securities |  | 5,326
Less than 12 months, unrealized (loss), held to maturity securities |  | (37)
12 months or more, fair value, held to maturity securities |  | 6,115
12 months or more, unrealized (loss), held to maturity securities |  | (137)
Total, fair value, held to maturity securities |  | 11,441
Total, unrealized (loss), held to maturity securities |  | $ (174)

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- Definition The fair value of investment in available-for-sale and held-to-maturity debt securities in continuous unrealized loss position for 12 months or longer. + References No definition available. + Details
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- Definition The amount of accumulated unrealized loss on investment in available-for-sale and held-to-maturity debt securities in unrealized loss positions. + References No definition available. + Details
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- Definition The amount of accumulated unrealized loss on investment in available-for-sale and held-to-maturity securities in continuous loss position for 12 months or longer. + References No definition available. + Details
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- Definition The fair value of investment in available-for-sale and held-to-maturity debt securities in unrealized loss positions. + References No definition available. + Details
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- Definition The amount of accumulated unrealized loss on investment in available-for-sale and held-to-maturity securities in continuous loss position for less than 12 months + References No definition available. + Details
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- Definition Represents the aggregate fair value of investments in debt and equity securities categorized as available-for-sale and as held-to-maturity securities that have been in a continuous unrealized loss position for less than twelve months. + References No definition available. + Details
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