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Deposits (Tables) | 12 Months Ended
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Dec. 31, 2023
Schedule of Maturities of Time Deposits | A schedule of maturities of time deposits at December 31, 2023 follows (in thousands): Schedule of Maturities of Time Deposits
Maturing Year Ending December 31, |  | Amount |
2024 |  | $ | 81,302 |
2025 |  |  | 40,276 |
2026 |  |  | 1 |
2028 |  |  | 178 |
Total |  | $ | 121,757 |

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- Definition Tabular disclosure of maturities of time deposits. + References No definition available. + Details
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Namespace Prefix: | OPHC_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration