Loans Receivable and Allowance for Loan Losses (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired Loans with Specific Evidence of Deterioration in Credit Quality, Outstanding Balance	$ 1,821	$ 498
Acquired Loans with Specific Evidence of Deterioration in Credit Quality, Carrying Amount	1,386	498
Real Estate Acquired Through Foreclosure	5,302	2,847
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	163	515	$ 451
Loans and Leases Receivable, Gross	714,105	560,251
Impaired Financing Receivable, Recorded Investment	2,624	9,228
Impaired Financing Receivable, Related Allowance		1,613
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,624	2,855
Impaired Financing Receivable, with Related Allowance, Recorded Investment		6,373
Write downs	2,951	3,198	1,546
Proceeds from Sale of Mortgage Loans Held-for-sale	1,739	4,410	4,419
Servicing Asset at Amortized Cost	35,500	32,900
Customer Concentration Risk [Member] \| Loans Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	31	643	$ 422
Hospitality Lodging Industry [Member] \| Loans Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	$ 71,800
Concentration Risk, Percentage	70.70%
Automobile Dealers [Member] \| Loans Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	$ 50,900
Concentration Risk, Percentage	50.10%
Troubled Debt Restructured Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, Related Allowance	$ 0	1,613
Residential Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired Loans with Specific Evidence of Deterioration in Credit Quality, Carrying Amount	821	140
Real Estate Acquired Through Foreclosure	297
Mortgage Loans in Process of Foreclosure, Amount	421
Allowance for Loan and Lease Losses, Adjustments, Other		(254)
Loans and Leases Receivable, Gross	237,177	161,820
Allowance for Loan and Lease Losses, Real Estate		1,069
Impaired Financing Receivable, Recorded Investment	23	168
Impaired Financing Receivable, Related Allowance	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	23	$ 168
Historical loss factor		0.23%	0.30%
Write downs	123	$ 224	$ 270
Gross Realized Gains on Loans	54	113	150
Gross Realized Losses on Loans	0	0	0
Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Acquired Loans with Specific Evidence of Deterioration in Credit Quality, Carrying Amount	565	358
Allowance for Loan and Lease Losses, Adjustments, Other	419	1,320
Allowance for Loan and Lease Losses, Period Increase (Decrease)	(883)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses		1,596
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses, Decreases		1,610
Loans and Leases Receivable, Gross	320,187	279,123
Allowance for Loan and Lease Losses, Real Estate	4,623	5,506	3,890
Impaired Financing Receivable, Recorded Investment	2,601	9,017
Impaired Financing Receivable, Related Allowance		1,613
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$ 2,601	2,644
Impaired Financing Receivable, with Related Allowance, Recorded Investment		$ 6,373
Historical loss factor	0.80%	0.70%
Write downs	$ 2,711	$ 2,883	$ 1,196
Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, Recorded Investment	2,624	9,228
Impaired Financing Receivable, Related Allowance	0	1,613
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		2,855
Impaired Financing Receivable, with Related Allowance, Recorded Investment		6,373
Impaired Loans Not Requiring an Allowance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	831	1,971
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,624	2,855
Impaired Loans Requiring an Allowance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs		73
Impaired Financing Receivable, with Related Allowance, Recorded Investment	$ 0	$ 6,373

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Gross Realized Losses on Loans

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Historical loss factor used to determine the allowance for loan and lease losses.

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Amount of other addition (reduction) in allowance reserve for credit loss.

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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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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and other-than-temporary impairments), for loans accounted for as debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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Amount of reduction in the reserve for loans impairments as a result of current information and events which result in it being probable that estimated cash flows will be significantly higher than previously expected or because actual cash flows are significantly greater than cash flows previously expected for loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

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Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

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

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Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

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Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future.

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Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

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Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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