Loans (Narrative) (Details) $ in Thousands	3 Months Ended
Mar. 31, 2016 USD ($) loan	Mar. 31, 2015 USD ($) loan	Dec. 31, 2015 USD ($)
Accounts Notes And Loans Receivable [Line Items]
Loans	$ 300,479		$ 297,064
Cash payments of interest	$ 79	$ 83
Loans 90 days or more past due and still accruing interest
Number of days of default payment	90 days
Total TDR's	$ 5,212		$ 5,276
Allocated specific reserves to modified TDRs	33		20
Commitment to lend additional amounts	$ 0		0
Number of loans modified as a TDR \| loan	0	0
Number of TDRs in payment default \| loan	0	0
Recorded investment of loans undergoing modifications, not TDRs	$ 4,090	$ 2,517
Accruing TDR's	$ 4,866		$ 4,920
Period of timely payments before reversion to accruing status	6 months
Northpointe [Member] \| Mortgage Purchase Program Member [Member]
Accounts Notes And Loans Receivable [Line Items]
Percent of loans risk rated for capital adequacy	100.00%
Percent of participation agreement interest			95.00%
Ownership interest in each loan it participates	5.00%
Single-Family Residential [Member] \| Northpointe [Member] \| Mortgage Purchase Program Member [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans	$ 38,572		$ 43,517

Allocated specific reserves to modified TDRs.

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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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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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Troubled Debt Restructurings, Minimum Timely Payments Required Before Reversion To Accruing Status

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

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-Name Accounting Standards Codification
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-Paragraph 4
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Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

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- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Paragraph 7
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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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Reflects the unfunded portion of contractual agreements to lend funds to borrowers for loans whose terms have been modified by troubled debt restructuring.

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-Name Accounting Standards Codification
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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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-Publisher FASB
-Name Accounting Standards Codification
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