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Borrowings and Related Interest (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Sep. 30, 2003
Debt Instrument [Line Items]
Other borrowings	$ 1,214	$ 153
Subordinated Debt	$ 36,083	36,083
Trust redeemable preferred securities issued				$ 35,000
Debt Instrument Interest Rate Terms	3-month LIBOR plus 295 basis points
Gains Losses On Extinguishment Of Debt	$ 0	(80)	$ (12,000)
Federal Home Loan Bank Advances [Member]
Debt Instrument [Line Items]
Loans pledged as collateral to secure FHLB advances	847,300	1,300,000
Additional Borrowing Capacity	$ 762,000	$ 920,000
Weighted average period remaining maturity of FHLB advances	26.6 months	3.2 months
Interest payable	$ 176	$ 322
Minimum amount of qualifying collateral	110.00%
Federal Home Loan Bank Advances [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument term	1 day
Federal Home Loan Bank Advances [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument term	7 years
Repurchase agreement
Debt Instrument [Line Items]
Interest payable	$ 785	$ 369
Junior Subordinated Debt [Member]
Debt Instrument [Line Items]
Effective interest rate	5.74%	4.55%
Face amount	$ 36,100
Debt Instrument Basis Spread On Variable Rate	2.95%

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount before allowance of mortgage loans on existing land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.

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