Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] |
| | | | | | Fair Value Measurements at March 31, 2020 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 | | $ | 16,553 | | | $ | 16,553 | | | $ | - | | | $ | - | | residential mortgage-backed securities | | | 158,938 | | | | - | | | | 158,938 | | | | - | | Municipal securities | | | 117,123 | | | | - | | | | 117,123 | | | | - | | Collateralized debt obligations | | | 773 | | | | - | | | | - | | | | 773 | | Total securities available-for-sale | | $ | 293,387 | | | $ | 16,553 | | | $ | 276,061 | | | $ | 773 | |
| | | | | | Fair Value Measurements at December 31, 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 | | $ | 9,670 | | | $ | 9,670 | | | $ | - | | | $ | - | | U.S. government sponsored entities | | | 13,058 | | | | - | | | | 13,058 | | | | - | | Collateralized mortgage obligations and residential mortgage-backed securities | | | 150,988 | | | | - | | | | 150,988 | | | | - | | Municipal securities | | | 102,427 | | | | - | | | | 102,427 | | | | - | | Collateralized debt obligations | | | 1,076 | | | | - | | | | - | | | | 1,076 | | Total securities available-for-sale | | $ | 277,219 | | | $ | 9,670 | | | $ | 266,473 | | | $ | 1,076 | |
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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, 2019 | | $ | 2,049 | | Principal payments | | | (38 | ) | Total unrealized gains, included in other comprehensive income | | | 52 | | Transfers in and/or (out) of Level 3 | | | (987 | ) | Ending balance, December 31, 2019 | | $ | 1,076 | | | | | | | Beginning balance, January 1, 2020 | | $ | 1,076 | | Principal payments | | | (5 | ) | Total unrealized losses, included in other comprehensive income | | | (298 | ) | Sale out of Level 3 | | | - | | Ending balance, March 31, 2020 | | $ | 773 | |
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Fair Value, by Balance Sheet Grouping [Table Text Block] |
| | March 31, 2020 | | | Estimated Fair Value Measurements at March 31, 2020 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 | | $ | 42,146 | | | $ | 42,146 | | | $ | 42,146 | | | $ | - | | | $ | - | | Certificates of deposit in other financial institutions | | | 1,741 | | | | 1,715 | | | | - | | | | 1,715 | | | | - | | Securities available-for-sale | | | 293,387 | | | | 293,387 | | | | 16,553 | | | | 276,061 | | | | 773 | | Loans held-for-sale | | | 5,375 | | | | 5,553 | | | | 5,553 | | | | - | | | | - | | Loans receivable, net | | | 909,451 | | | | 904,358 | | | | - | | | | - | | | | 904,358 | | Federal Home Loan Bank stock | | | 3,912 | | | | 3,912 | | | | - | | | | 3,912 | | | | - | | Interest rate swap agreements | | | 3,282 | | | | 3,282 | | | | - | | | | 3,282 | | | | - | | Accrued interest receivable | | | 4,114 | | | | 4,114 | | | | - | | | | 4,114 | | | | - | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Non-interest bearing deposits | | | 185,219 | | | | 185,219 | | | | 185,219 | | | | - | | | | - | | Interest bearing deposits | | | 976,423 | | | | 978,115 | | | | 661,953 | | | | 316,162 | | | | - | | Repurchase agreements | | | 12,991 | | | | 12,999 | | | | 11,213 | | | | 1,786 | | | | - | | Borrowed funds | | | 14,000 | | | | 14,197 | | | | - | | | | 14,197 | | | | - | | Interest rate swap agreements | | | 3,282 | | | | 3,282 | | | | - | | | | 3,282 | | | | - | | Accrued interest payable | | | 94 | | | | 94 | | | | - | | | | 94 | | | | - | |
| | December 31, 2019 | | | Estimated Fair Value Measurements at December 31, 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 | | $ | 47,258 | | | $ | 47,258 | | | $ | 47,258 | | | $ | - | | | $ | - | | Certificates of deposit in other financial institutions | | | 2,170 | | | | 2,137 | | | | - | | | | 2,137 | | | | - | | Securities available-for-sale | | | 277,219 | | | | 277,219 | | | | 9,670 | | | | 266,473 | | | | 1,076 | | Loans held-for-sale | | | 6,091 | | | | 6,204 | | | | 6,204 | | | | - | | | | - | | Loans receivable, net | | | 897,870 | | | | 917,174 | | | | - | | | | - | | | | 917,174 | | Federal Home Loan Bank stock | | | 3,912 | | | | 3,912 | | | | - | | | | 3,912 | | | | - | | Interest rate swap agreements | | | 1,358 | | | | 1,358 | | | | - | | | | 1,358 | | | | - | | Accrued interest receivable | | | 4,029 | | | | 4,029 | | | | - | | | | 4,029 | | | | - | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Non-interest bearing deposits | | | 172,094 | | | | 172,094 | | | | 172,094 | | | | - | | | | - | | Interest bearing deposits | | | 982,276 | | | | 982,241 | | | | 654,573 | | | | 327,668 | | | | - | | Repurchase agreements | | | 11,499 | | | | 11,499 | | | | 9,721 | | | | 1,778 | | | | - | | Borrowed funds | | | 14,000 | | | | 14,108 | | | | - | | | | 14,108 | | | | - | | Interest rate swap agreements | | | 1,358 | | | | 1,358 | | | | - | | | | 1,358 | | | | - | | Accrued interest payable | | | 179 | | | | 179 | | | | - | | | | 179 | | | | - | |
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