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v3.19.1

Deposits (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Deposits [Abstract] |
Schedule of Time Deposit Maturities |
﻿ |  |
﻿2019 | $ | 96,758
﻿2020 |  | 51,705
﻿2021 |  | 71,672
﻿2022 |  | 21,494
﻿2023 |  | 10,040
﻿Thereafter |  | 0
﻿ |  |
﻿ Total | $ | 251,669
﻿

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- Definition Tabular disclosure of the scheduled maturities of time deposits. + References No definition available. + Details
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Namespace Prefix: | func_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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