Allocated specific reserves to modified TDRs.

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- Definition

Average Days For Mortgage Purchase Interest Process

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Loans Modified Not Troubled Debt Restructurings Recorded Investment

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Loans Participation Agreement Percentage

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Number Of Days Of Default Payment

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- Definition

Ownership Interest In Each Loan

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Percent Of Loans Held Risk Rated For Capital Adequacy

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- Definition

Trouble debt restructuring accrual financial receivables.

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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.

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- Definition

The reserve to cover probable credit losses related to specifically identified fixed maturity real estate loans as well as probable credit losses inherent in the remainder of that loan portfolio.

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Number of financing receivables that have been modified by troubled debt restructurings.

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Amount of financing receivable modified as troubled debt restructuring.

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

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Amount of financing receivable 90 days or more past due and still accruing.

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Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Loans And Leases (Narrative) (Details)	3 Months Ended				9 Months Ended
Loans And Leases (Narrative) (Details)	Sep. 30, 2019 USD ($) loan	Jun. 30, 2019 loan	Sep. 30, 2018 USD ($) loan	Jun. 30, 2018 loan	Sep. 30, 2019 USD ($) loan	Sep. 30, 2018 USD ($) loan	Dec. 31, 2018 USD ($)
Accounts Notes And Loans Receivable [Line Items]
Loans	$ 630,459,000				$ 630,459,000		$ 550,683,000
Cash payments of interest	44,000		$ 52,000		132,000	$ 151,000
Loans 90 days or more past due and still accruing interest
Number of days of default payment					90 days
Total TDR's	3,085,000				$ 3,085,000		3,161,000
Allocated specific reserves to modified TDRs	22,000				22,000		22,000
Commitment to lend additional amounts	$ 0				$ 0		0
Number of loans modified as a TDR \| loan	0		0		0	0
Number of TDRs in payment default \| loan		0		0
Recorded investment of loans undergoing modifications, not TDRs	$ 12,707,000		$ 10,210,000		$ 12,707,000	$ 10,210,000
Accruing TDR's	2,996,000				2,996,000		3,061,000
Loans And Leases Receivable Net Of Deferred Income	637,516,000				637,516,000		557,695,000
Doubtful [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans And Leases Receivable Net Of Deferred Income	0				$ 0		0
Northpointe [Member] \| Mortgage Purchase Program [Member]
Accounts Notes And Loans Receivable [Line Items]
Average days					14 days
Percent of loans risk rated for capital adequacy					100.00%
Mortgage allowance	$ 0				$ 0
Percent of participation agreement interest	95.00%				95.00%
Ownership interest in each loan it participates					5.00%
Single-Family Residential[Member]
Accounts Notes And Loans Receivable [Line Items]
Loans And Leases Receivable Net Of Deferred Income	$ 127,754,000				$ 127,754,000		118,386,000
Single-Family Residential[Member] \| Northpointe [Member] \| Mortgage Purchase Program [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans	34,762,000				34,762,000		36,845,000
Commercial Portfolio Segment [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans And Leases Receivable Net Of Deferred Income	$ 155,248,000				$ 155,248,000		$ 126,887,000