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Note 14 - Accumulated Other Comprehensive Loss - Changes in Each Component of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Balance | $ 69,728 | $ 59,693 | $ 66,674 | [1] | $ 58,154
Unrealized holding losses (net of tax, ($304)) | 1,389 | (284) | 2,917 |  | (1,146)
Pension liability adjustment (net of tax, ($27)) |  |  |  |  | (99)
Change during period | 1,389 | (284) | 2,577 |  | (1,245)
Unrealized holding losses transferred from held to maturity to available for sale (net of tax, ($91)) |  |  | (340) |  |
Balance | 72,809 | 61,648 | 72,809 |  | 61,648
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] |  |  |  |  |
Balance |  |  | (1,808) |  | (1,057)
Unrealized holding losses (net of tax, ($304)) |  |  | 2,917 |  | (1,146)
Pension liability adjustment (net of tax, ($27)) |  |  |  |  |
Change during period |  |  | 2,577 |  | (1,146)
Unrealized holding losses transferred from held to maturity to available for sale (net of tax, ($91)) |  |  | (340) |  |
Balance | 769 | (2,203) | 769 |  | (2,203)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |  |  |
Balance |  |  |  |  | 99
Unrealized holding losses (net of tax, ($304)) |  |  |  |  |
Pension liability adjustment (net of tax, ($27)) |  |  |  |  | (99)
Change during period |  |  |  |  | (99)
Unrealized holding losses transferred from held to maturity to available for sale (net of tax, ($91)) |  |  |  |  |
Balance |  |  |  |  |
AOCI Attributable to Parent [Member] |  |  |  |  |
Balance | (620) | (1,919) | (1,808) |  | (958)
Unrealized holding losses (net of tax, ($304)) |  |  | 2,917 |  | (1,146)
Pension liability adjustment (net of tax, ($27)) |  |  |  |  | (99)
Change during period | 1,389 | (284) | 2,577 |  | (1,245)
Unrealized holding losses transferred from held to maturity to available for sale (net of tax, ($91)) |  |  | (340) |  |
Balance | $ 769 | $ (2,203) | $ 769 |  | $ (2,203)
[1] | Derived from audited consolidated financial statements.

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- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 + Details
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