Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] |
| | | | | | Fair Value Measurements at September 30, 2019 Using | | (Dollars in thousands) | | Estimated Fair Value | | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | Significant Other Observable Inputs (Level 2) | | | Significant Unobservable Inputs (Level 3) | | Available-for-sale debt securities: | | | | | | | | | | | | | | | | | Money market fund | | $ | 5,771 | | | $ | 5,771 | | | $ | - | | | $ | - | | U.S. treasury securities | | | - | | | | - | | | | - | | | | - | | U.S. government sponsored entities | | | 14,513 | | | | - | | | | 14,513 | | | | - | | Collateralized mortgage obligations and residential mortgage-backed securities | | | 140,621 | | | | - | | | | 140,621 | | | | - | | Municipal securities | | | 98,079 | | | | - | | | | 98,079 | | | | - | | Collateralized debt obligations | | | 2,070 | | | | - | | | | - | | | | 2,070 | | Total securities available-for-sale | | $ | 261,054 | | | $ | 5,771 | | | $ | 253,213 | | | $ | 2,070 | |
| | | | | | Fair Value Measurements at December 31, 2018 Using | | (Dollars in thousands) | | Estimated Fair Value | | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | Significant Other Observable Inputs (Level 2) | | | Significant Unobservable Inputs (Level 3) | | Available-for-sale debt securities: | | | | | | | | | | | | | | | | | Money market fund | | $ | 2,480 | | | $ | 2,480 | | | $ | - | | | $ | - | | U.S. treasury securities | | | - | | | | - | | | | - | | | | - | | U.S. government sponsored entities | | | 7,894 | | | | - | | | | 7,894 | | | | - | | Collateralized mortgage obligations and residential mortgage-backed securities | | | 135,281 | | | | - | | | | 135,281 | | | | - | | Municipal securities | | | 94,064 | | | | - | | | | 94,064 | | | | - | | Collateralized debt obligations | | | 2,049 | | | | - | | | | - | | | | 2,049 | | Total securities available-for-sale | | $ | 241,768 | | | $ | 2,480 | | | $ | 237,239 | | | $ | 2,049 | |
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Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] |
| | Estimated Fair Value Measurements Using Significant Unobservable Inputs (Level 3) | | | | Available-for- sale securities | | Beginning balance, January 1, 2018 | | $ | 3,439 | | Principal payments | | | (51 | ) | Total unrealized gains, included in other comprehensive income | | | (36 | ) | Transfers in and/or (out) of Level 3 | | | (1,303 | ) | Ending balance, December 31, 2018 | | $ | 2,049 | | | | | | | Beginning balance, January 1, 2019 | | $ | 2,049 | | Principal payments | | | (33 | ) | Total unrealized gains, included in other comprehensive income | | | 54 | | Sale out of Level 3 | | | - | | Ending balance, September 30, 2019 | | $ | 2,070 | |
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Fair Value, by Balance Sheet Grouping [Table Text Block] |
| | September 30, 2019 | | | Estimated Fair Value Measurements at September 30, 2019 Using | | (Dollars in thousands) | | Carrying Value | | | Estimated Fair Value | | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | Significant Other Observable Inputs (Level 2) | | | Significant Unobservable Inputs (Level 3) | | | | | | | | | | | | | | | | | | | | | | | Cash and cash equivalents | | $ | 71,942 | | | $ | 71,942 | | | $ | 71,942 | | | $ | - | | | $ | - | | Certificates of deposit in other financial institutions | | | 2,170 | | | | 2,137 | | | | - | | | | 2,137 | | | | - | | Securities available-for-sale | | | 261,054 | | | | 261,054 | | | | 5,771 | | | | 253,213 | | | | 2,070 | | Loans held-for-sale | | | 4,641 | | | | 4,761 | | | | 4,761 | | | | - | | | | - | | Loans receivable, net | | | 895,099 | | | | 907,899 | | | | - | | | | - | | | | 907,899 | | Federal Home Loan Bank stock | | | 3,912 | | | | 3,912 | | | | - | | | | 3,912 | | | | - | | Interest rate swap agreements | | | 1,860 | | | | 1,860 | | | | - | | | | 1,860 | | | | - | | Accrued interest receivable | | | 3,995 | | | | 3,995 | | | | - | | | | 3,995 | | | | - | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Non-interest bearing deposits | | | 176,878 | | | | 176,878 | | | | 176,878 | | | | - | | | | - | | Interest bearing deposits | | | 975,589 | | | | 975,443 | | | | 638,314 | | | | 337,129 | | | | - | | Repurchase agreements | | | 14,931 | | | | 14,931 | | | | 13,158 | | | | 1,773 | | | | - | | Borrowed funds | | | 16,000 | | | | 16,105 | | | | - | | | | 16,105 | | | | - | | Interest rate swap agreements | | | 1,860 | | | | 1,860 | | | | - | | | | 1,860 | | | | - | | Accrued interest payable | | | 166 | | | | 166 | | | | - | | | | 166 | | | | - | |
| | December 31, 2018 | | | Estimated Fair Value Measurements at December 31, 2018 Using | | (Dollars in thousands) | | Carrying Value | | | Estimated Fair Value | | | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | Significant Other Observable Inputs (Level 2) | | | Significant Unobservable Inputs (Level 3) | | | | | | | | | | | | | | | | | | | | | | | Cash and cash equivalents | | $ | 17,139 | | | $ | 17,139 | | | $ | 17,139 | | | $ | - | | | $ | - | | Certificates of deposit in other financial institutions | | | 2,024 | | | | 2,001 | | | | - | | | | 2,001 | | | | - | | Securities available-for-sale | | | 241,768 | | | | 241,768 | | | | 2,480 | | | | 237,239 | | | | 2,049 | | Loans held-for-sale | | | 2,863 | | | | 2,910 | | | | 2,910 | | | | - | | | | - | | Loans receivable, net | | | 756,438 | | | | 747,553 | | | | - | | | | - | | | | 747,553 | | Federal Home Loan Bank stock | | | 3,460 | | | | 3,460 | | | | - | | | | 3,460 | | | | - | | Interest rate swap agreements | | | 196 | | | | 196 | | | | - | | | | 196 | | | | | | Accrued interest receivable | | | 3,632 | | | | 3,632 | | | | - | | | | 3,632 | | | | - | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Non-interest bearing deposits | | | 127,277 | | | | 127,277 | | | | 127,277 | | | | - | | | | - | | Interest bearing deposits | | | 802,509 | | | | 800,349 | | | | 543,617 | | | | 256,732 | | | | - | | Repurchase agreements | | | 11,628 | | | | 11,626 | | | | 9,867 | | | | 1,759 | | | | - | | Borrowed funds | | | 43,000 | | | | 42,888 | | | | - | | | | 42,888 | | | | - | | Interest rate swap agreements | | | 196 | | | | 196 | | | | | | | | 196 | | | | | | Accrued interest payable | | | 186 | | | | 186 | | | | - | | | | 186 | | | | - | |
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