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Loans - Impaired Loans - Recorded Investment, Unpaid Principal Balance and Related Allowance (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Recorded Investment
With no related allowance recorded	$ 7,844,000	$ 14,855,000
With an allowance recorded	12,515,000	5,257,000
Total impaired loans	20,359,000	20,112,000
Unpaid Principal Balance
With no related allowance recorded	9,895,000	17,792,000
With an allowance recorded	13,936,000	5,257,000
Total impaired loans	23,831,000	23,049,000
Related Allowance
With an allowance recorded	352,000	144,000
Multifamily
Recorded Investment
With no related allowance recorded		4,723,000
Unpaid Principal Balance
With no related allowance recorded		4,965,000
Lease financing receivables
Recorded Investment
With no related allowance recorded		178,000
Unpaid Principal Balance
With no related allowance recorded		213,000
Real estate - commercial | Owner occupied general purpose
Recorded Investment
With no related allowance recorded	1,659,000	455,000
With an allowance recorded	396,000
Unpaid Principal Balance
With no related allowance recorded	1,782,000	495,000
With an allowance recorded	396,000
Related Allowance
With an allowance recorded	3,000
Real estate - commercial | Owner occupied special purpose
Recorded Investment
With no related allowance recorded	395,000	342,000
Unpaid Principal Balance
With no related allowance recorded	530,000	498,000
Real estate - commercial | Non-owner occupied general purpose
Recorded Investment
With no related allowance recorded	1,138,000	1,163,000
With an allowance recorded	3,098,000
Unpaid Principal Balance
With no related allowance recorded	1,159,000	1,538,000
With an allowance recorded	4,038,000
Related Allowance
With an allowance recorded	97,000
Real estate - commercial | Non-owner occupied special purpose
Recorded Investment
With an allowance recorded	3,099,000
Unpaid Principal Balance
With an allowance recorded	3,575,000
Related Allowance
With an allowance recorded	139,000
Real estate - commercial | Retail properties
Recorded Investment
With no related allowance recorded		1,081,000
Unpaid Principal Balance
With no related allowance recorded		1,177,000
Real estate - residential | Investor
Recorded Investment
With no related allowance recorded	353,000	372,000
With an allowance recorded	808,000	829,000
Unpaid Principal Balance
With no related allowance recorded	459,000	676,000
With an allowance recorded	808,000	829,000
Related Allowance
With an allowance recorded	4,000	10,000
Real estate - residential | Owner occupied
Recorded Investment
With no related allowance recorded	3,359,000	5,208,000
With an allowance recorded	3,676,000	3,443,000
Unpaid Principal Balance
With no related allowance recorded	4,882,000	6,680,000
With an allowance recorded	3,679,000	3,443,000
Related Allowance
With an allowance recorded	46,000	43,000
Real estate - residential | Revolving and junior liens
Recorded Investment
With no related allowance recorded	884,000	1,125,000
With an allowance recorded	1,357,000	985,000
Unpaid Principal Balance
With no related allowance recorded	1,003,000	1,313,000
With an allowance recorded	1,357,000	985,000
Related Allowance
With an allowance recorded	49,000	91,000
Consumer
Recorded Investment
With no related allowance recorded	7,000	7,000
With an allowance recorded	24,000
Unpaid Principal Balance
With no related allowance recorded	7,000	8,000
With an allowance recorded	25,000
Related Allowance
With an allowance recorded	13,000
Construction Loans | Real estate - commercial | All other
Recorded Investment
With no related allowance recorded	49,000	201,000
With an allowance recorded	57,000
Unpaid Principal Balance
With no related allowance recorded	73,000	$ 229,000
With an allowance recorded	58,000
Related Allowance
With an allowance recorded	$ 1,000

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