Fair Value of Financial Instruments (Fair Value By Balance Sheet Grouping) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	$ 27,554	$ 32,895
Interest bearing deposits	7,897	10,168
Investment securities - AFS, Carrying Amount	221,117us-gaap_AvailableForSaleSecurities	336,589us-gaap_AvailableForSaleSecurities
Investment securities - AFS, Fair Value	221,117	336,589
Investment securities - HTM	110,771	3,590
Investment securities - HTM, carrying amount	109,449	3,900
Restricted Bank Stock	7,524func_RestrictedBankStock	7,913func_RestrictedBankStock
Loans, net	830,904	799,937
Accrued interest receivable	4,152	4,342
Deposits - non-maturity	689,581	650,761
Deposits - time deposits	296,713func_TimeDepositsFairValueDisclosure	333,256func_TimeDepositsFairValueDisclosure
Short-term borrowed funds	39,801us-gaap_ShorttermDebtFairValue	43,676us-gaap_ShorttermDebtFairValue
Long-term borrowed funds	187,143us-gaap_LongTermDebtFairValue	189,135us-gaap_LongTermDebtFairValue
Accrued interest payable	882	7,647
Financial Derivative	199	457
Off balance sheet financial instruments	0	0
Cash and due from banks, Carrying Amount	27,554us-gaap_CashAndDueFromBanks	32,895us-gaap_CashAndDueFromBanks
Interest bearing deposits in banks, Carrying Amount	7,897us-gaap_InterestBearingDepositsInBanks	10,168us-gaap_InterestBearingDepositsInBanks
Investment securities - held to maturity (fair value $110,771 at December 31, 2014 and $3,590 at December 31, 2013, respectively)	109,449us-gaap_HeldToMaturitySecurities	3,900us-gaap_HeldToMaturitySecurities
Restricted Bank stock, Carrying Amount	7,524us-gaap_RestrictedInvestments	7,913us-gaap_RestrictedInvestments
Loans, net, Carrying Amount	827,926	796,646
Accrued interest receivable, Carrying Amount	4,152us-gaap_InterestReceivable	4,342us-gaap_InterestReceivable
Deposits - non-maturity, Carrying Amount	689,581func_NonMaturityDepositsCarryingAmount	650,761func_NonMaturityDepositsCarryingAmount
Deposits - time deposits, Carrying Amount	291,742us-gaap_TimeDeposits	326,642us-gaap_TimeDeposits
Short-term borrowings	39,801us-gaap_ShortTermBorrowings	43,676us-gaap_ShortTermBorrowings
Long-term borrowings	182,606us-gaap_LongTermDebt	182,672us-gaap_LongTermDebt
Accrued interest payable, Carrying Amount	882	7,647
Financial derivative, Carrying Amount	199	457
Off balance sheet financial instruments	0	0
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	27,554	32,895
Interest bearing deposits	7,897	10,168
Off balance sheet financial instruments	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities - AFS, Carrying Amount	195,778	319,051
Investment securities - HTM	108,163
Restricted Bank Stock	7,524	7,913
Accrued interest receivable	4,152	4,342
Deposits - non-maturity	689,581	650,761
Deposits - time deposits	296,713	333,256
Short-term borrowed funds	39,801	43,676
Long-term borrowed funds	187,143	189,135
Accrued interest payable	882	7,647
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities - AFS, Carrying Amount	25,339	17,538
Investment securities - HTM	2,608	3,590
Loans, net	830,904	799,937
Financial Derivative	$ 199	$ 457

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. Includes disclosure of claims held for interest amounts due a company.

No definition available.