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Available-for-sale securities (Details 2) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019
--- | --- | --- | ---
Available-for-sale securities [Abstract] |  |  |
Cost | $ 10,864 | $ 11,032 | $ 10,858
Gross Unrealized Gains | 248 | 88 | 31
Gross Unrealized Losses | 0 | 10 | 88
Fair Value | 11,112 | 11,110 | 10,801
Mortgage-backed securities |  |  |
Available-for-sale securities [Abstract] |  |  |
Cost | 9,691 | 9,804 | 10,679
Gross Unrealized Gains | 236 | 87 | 31
Gross Unrealized Losses | 0 | 10 | 88
Fair Value | 9,927 | 9,881 | 10,622
U.S. Treasury securities |  |  |
Available-for-sale securities [Abstract] |  |  |
Cost | 1,173 | 1,228 | 179
Gross Unrealized Gains | 12 | 1 | 0
Gross Unrealized Losses | 0 | 0 | 0
Fair Value | $ 1,185 | $ 1,229 | $ 179

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563 + Details
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- Definition Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + References No definition available. + Details
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- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
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