XML 49 R39.htm IDEA: XBRL DOCUMENT
v3.23.3

Loans and Allowance for Credit Losses - Schedule of Portfolio Quality Indicators (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | $ 460,875
Total gross loans |  |  |  |  |
Total | $ 466,842 |  | $ 466,842 |  | 460,875
Current period gross charge-offs |  |  |  |  |
Total | 33 | $ 56 | 95 | $ 130 |
Commercial and Industrial |  |  |  |  |
Total gross loans |  |  |  |  |
2023 | 23,795 |  | 23,795 |  |
2022 | 47,762 |  | 47,762 |  |
2021 | 63,615 |  | 63,615 |  |
2020 | 42,526 |  | 42,526 |  |
2019 | 33,760 |  | 33,760 |  |
Prior | 68,668 |  | 68,668 |  |
Revolving Loans Amortized Cost Basis | 87,171 |  | 87,171 |  |
Total | 367,297 |  | 367,297 |  |
Current period gross charge-offs |  |  |  |  |
2023 |  |  | 1 |  |
Total |  |  | 1 |  |
Commercial and Industrial |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 90,548
Total gross loans |  |  |  |  |
2023 | 15,880 |  | 15,880 |  |
2021 | 14,235 |  | 14,235 |  |
2020 | 15,192 |  | 15,192 |  |
2019 | 6,537 |  | 6,537 |  |
Prior | 6,217 |  | 6,217 |  |
Revolving Loans Amortized Cost Basis | 20,279 |  | 20,279 |  |
Total | 94,840 |  | 94,840 |  | 90,548
Current period gross charge-offs |  |  |  |  |
2023 |  |  | 1 |  |
2022 |  |  | 16,500 |  |
Total | 1 | 16 | 1 | 16 |
Commercial Real Estate |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 270,312
Total gross loans |  |  |  |  |
2023 | 7,915 |  | 7,915 |  |
2021 | 49,380 |  | 49,380 |  |
2020 | 27,334 |  | 27,334 |  |
2019 | 27,223 |  | 27,223 |  |
Prior | 62,451 |  | 62,451 |  |
Revolving Loans Amortized Cost Basis | 66,892 |  | 66,892 |  |
Total | 272,457 |  | 272,457 |  | 270,312
Current period gross charge-offs |  |  |  |  |
2022 |  |  | 31,262 |  |
Residential Real Estate and Consumer, Total |  |  |  |  |
Total gross loans |  |  |  |  |
2023 | 10,716 |  | 10,716 |  |
2022 | 20,218 |  | 20,218 |  |
2021 | 17,229 |  | 17,229 |  |
2020 | 20,573 |  | 20,573 |  |
2019 | 6,342 |  | 6,342 |  |
Prior | 24,095 |  | 24,095 |  |
Revolving Loans Amortized Cost Basis | 372 |  | 372 |  |
Current period gross charge-offs |  |  |  |  |
Total | 99,545 |  | 99,545 |  |
Residential Real Estate and Consumer, Total | Performing |  |  |  |  |
Total gross loans |  |  |  |  |
2023 | 10,716 |  | 10,716 |  |
2022 | 20,218 |  | 20,218 |  |
2021 | 17,229 |  | 17,229 |  |
2020 | 20,573 |  | 20,573 |  |
2019 | 6,303 |  | 6,303 |  |
Prior | 23,926 |  | 23,926 |  |
Revolving Loans Amortized Cost Basis | 372 |  | 372 |  |
Total | 99,337 |  | 99,337 |  |
Residential Real Estate and Consumer, Total | Nonperforming |  |  |  |  |
Total gross loans |  |  |  |  |
2019 | 39 |  | 39 |  |
Prior | 169 |  | 169 |  |
Total | 208 |  | 208 |  |
Residential |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 94,012
Total gross loans |  |  |  |  |
2023 | 8,489 |  | 8,489 |  |
2022 | 18,664 |  | 18,664 |  |
2021 | 16,479 |  | 16,479 |  |
2020 | 20,070 |  | 20,070 |  |
2019 | 5,984 |  | 5,984 |  |
Prior | 23,060 |  | 23,060 |  |
Total | 92,746 |  | 92,746 |  | 94,012
Current period gross charge-offs |  |  |  |  |
Total |  | 2 |  | 2 |
Residential | Performing |  |  |  |  |
Total gross loans |  |  |  |  |
2023 | 8,489 |  | 8,489 |  |
2022 | 18,664 |  | 18,664 |  |
2021 | 16,479 |  | 16,479 |  |
2020 | 20,070 |  | 20,070 |  |
2019 | 5,945 |  | 5,945 |  |
Prior | 22,891 |  | 22,891 |  |
Total | 92,538 |  | 92,538 |  |
Residential | Nonperforming |  |  |  |  |
Total gross loans |  |  |  |  |
2019 | 39 |  | 39 |  |
Prior | 169 |  | 169 |  |
Total | 208 |  | 208 |  |
Consumer |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 6,003
Total gross loans |  |  |  |  |
2023 | 2,227 |  | 2,227 |  |
2022 | 1,554 |  | 1,554 |  |
2021 | 750 |  | 750 |  |
2020 | 503 |  | 503 |  |
2019 | 358 |  | 358 |  |
Prior | 1,035 |  | 1,035 |  |
Revolving Loans Amortized Cost Basis | 372 |  | 372 |  |
Total | 6,799 |  | 6,799 |  | 6,003
Current period gross charge-offs |  |  |  |  |
2023 |  |  | 93 |  |
2022 |  |  | 1 |  |
Total | 32 | $ 38 | 94 | $ 112 |
Consumer | Performing |  |  |  |  |
Total gross loans |  |  |  |  |
2023 | 2,227 |  | 2,227 |  |
2022 | 1,554 |  | 1,554 |  |
2021 | 750 |  | 750 |  |
2020 | 503 |  | 503 |  |
2019 | 358 |  | 358 |  |
Prior | 1,035 |  | 1,035 |  |
Revolving Loans Amortized Cost Basis | 372 |  | 372 |  |
Total | 6,799 |  | 6,799 |  |
Pass Grade |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 453,035
Pass Grade | Commercial and Industrial |  |  |  |  |
Total gross loans |  |  |  |  |
2023 | 23,795 |  | 23,795 |  |
2021 | 63,371 |  | 63,371 |  |
2020 | 40,459 |  | 40,459 |  |
2019 | 33,760 |  | 33,760 |  |
Prior | 66,640 |  | 66,640 |  |
Revolving Loans Amortized Cost Basis | 87,171 |  | 87,171 |  |
Total | 362,932 |  | 362,932 |  |
Current period gross charge-offs |  |  |  |  |
2022 |  |  | 47,736 |  |
Pass Grade | Commercial and Industrial |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 90,548
Total gross loans |  |  |  |  |
2023 | 15,880 |  | 15,880 |  |
2021 | 14,235 |  | 14,235 |  |
2020 | 15,192 |  | 15,192 |  |
2019 | 6,537 |  | 6,537 |  |
Prior | 6,092 |  | 6,092 |  |
Revolving Loans Amortized Cost Basis | 20,279 |  | 20,279 |  |
Total | 94,689 |  | 94,689 |  |
Current period gross charge-offs |  |  |  |  |
2022 |  |  | 16,474 |  |
Pass Grade | Commercial Real Estate |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 262,472
Total gross loans |  |  |  |  |
2023 | 7,915 |  | 7,915 |  |
2021 | 49,136 |  | 49,136 |  |
2020 | 25,267 |  | 25,267 |  |
2019 | 27,223 |  | 27,223 |  |
Prior | 60,548 |  | 60,548 |  |
Revolving Loans Amortized Cost Basis | 66,892 |  | 66,892 |  |
Total | 268,243 |  | 268,243 |  |
Current period gross charge-offs |  |  |  |  |
2022 |  |  | 31,262 |  |
Pass Grade | Residential |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 94,012
Pass Grade | Consumer |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 6,003
Special Mention |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 4,066
Special Mention | Commercial and Industrial |  |  |  |  |
Total gross loans |  |  |  |  |
2021 | 244 |  | 244 |  |
2020 | 2,067 |  | 2,067 |  |
Prior | 2,004 |  | 2,004 |  |
Total | 4,341 |  | 4,341 |  |
Current period gross charge-offs |  |  |  |  |
2022 |  |  | 26 |  |
Special Mention | Commercial and Industrial |  |  |  |  |
Total gross loans |  |  |  |  |
Prior | 125 |  | 125 |  |
Total | 151 |  | 151 |  |
Current period gross charge-offs |  |  |  |  |
2022 |  |  | 26 |  |
Special Mention | Commercial Real Estate |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 4,066
Total gross loans |  |  |  |  |
2021 | 244 |  | 244 |  |
2020 | 2,067 |  | 2,067 |  |
Prior | 1,879 |  | 1,879 |  |
Total | 4,190 |  | 4,190 |  |
Substandard |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | 3,774
Substandard | Commercial and Industrial |  |  |  |  |
Total gross loans |  |  |  |  |
Prior | 24 |  | 24 |  |
Total | 24 |  | 24 |  |
Substandard | Commercial Real Estate |  |  |  |  |
Loans and Allowance for Loan Losses |  |  |  |  |
Total |  |  |  |  | $ 3,774
Total gross loans |  |  |  |  |
Prior | 24 |  | 24 |  |
Total | $ 24 |  | $ 24 |  |

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References No definition available. + Details
Name: | ubcp_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLoss
Namespace Prefix: | ubcp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoffByOriginationYearAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossByOriginationYearAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding accrued interest, of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481990/310-10-45-2 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=ubcp_ResidentialMortgageAndConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |