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Loans - Impaired Loans - Recorded Investment, Unpaid Principal Balance and Related Allowance (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Recorded Investment
With no related allowance recorded	$ 7,708	$ 14,855
With an allowance recorded	9,522	5,257
Total impaired loans	17,230	20,112
Unpaid Principal Balance
With no related allowance recorded	9,784	17,792
With an allowance recorded	9,522	5,257
Total impaired loans	19,306	23,049
Related Allowance
With an allowance recorded	588	144
Lease financing receivables
Recorded Investment
With no related allowance recorded		178
Unpaid Principal Balance
With no related allowance recorded		213
Real estate - commercial | Owner occupied general purpose
Recorded Investment
With no related allowance recorded	378	455
With an allowance recorded	305
Unpaid Principal Balance
With no related allowance recorded	421	495
With an allowance recorded	305
Related Allowance
With an allowance recorded	26
Real estate - commercial | Owner occupied special purpose
Recorded Investment
With no related allowance recorded	440	342
Unpaid Principal Balance
With no related allowance recorded	552	498
Real estate - commercial | Non-owner occupied general purpose
Recorded Investment
With no related allowance recorded	42	1,163
Unpaid Principal Balance
With no related allowance recorded	56	1,538
Real estate - commercial | Non-owner occupied special purpose
Recorded Investment
With an allowance recorded	3,575
Unpaid Principal Balance
With an allowance recorded	3,575
Related Allowance
With an allowance recorded	477
Real estate - commercial | Retail properties
Recorded Investment
With no related allowance recorded		1,081
Unpaid Principal Balance
With no related allowance recorded		1,177
Real estate - residential | Investor
Recorded Investment
With no related allowance recorded	361	372
With an allowance recorded	823	829
Unpaid Principal Balance
With no related allowance recorded	531	676
With an allowance recorded	823	829
Related Allowance
With an allowance recorded	10	10
Real estate - residential | Multifamily
Recorded Investment
With no related allowance recorded		4,723
Unpaid Principal Balance
With no related allowance recorded		4,965
Real estate - residential | Owner occupied
Recorded Investment
With no related allowance recorded	5,148	5,208
With an allowance recorded	3,676	3,443
Unpaid Principal Balance
With no related allowance recorded	6,650	6,680
With an allowance recorded	3,676	3,443
Related Allowance
With an allowance recorded	46	43
Real estate - residential | Revolving and junior liens
Recorded Investment
With no related allowance recorded	1,125	1,125
With an allowance recorded	1,143	985
Unpaid Principal Balance
With no related allowance recorded	1,329	1,313
With an allowance recorded	1,143	985
Related Allowance
With an allowance recorded	29	91
Consumer
Recorded Investment
With no related allowance recorded	17	7
Unpaid Principal Balance
With no related allowance recorded	18	8
Construction Loans | Real estate - commercial | All other
Recorded Investment
With no related allowance recorded	197	201
Unpaid Principal Balance
With no related allowance recorded	$ 227	$ 229

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-Publisher FASB
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