Loans - Impaired Loans, Individually Evaluated (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Impaired Loans [Abstract]
Unpaid Principal Balance	$ 9,886		$ 12,526
Recorder Investment - Without Allowance	6,531		10,072
Recorder Investment - With Allowance	3,222		2,321
Total Recorded Investment	9,753		12,393
Related Allowance	786		724
Average Recorded Investment	11,073	$ 8,128
Interest Income Recognized	138	84
Impaired loans, interest income forgone	62	8
Commercial business
Impaired Loans [Abstract]
Unpaid Principal Balance	1,549		997
Recorder Investment - Without Allowance	429		714
Recorder Investment - With Allowance	1,121		283
Total Recorded Investment	1,550		997
Related Allowance	155		84
Average Recorded Investment	1,273	1,086
Interest Income Recognized	23	18
One-to-four family
Impaired Loans [Abstract]
Unpaid Principal Balance	6,056		8,748
Recorder Investment - Without Allowance	4,453		7,236
Recorder Investment - With Allowance	1,475		1,384
Total Recorded Investment	5,928		8,620
Related Allowance	206		205
Average Recorded Investment	7,274	4,427
Interest Income Recognized	72	38
Home equity
Impaired Loans [Abstract]
Unpaid Principal Balance	358		335
Recorder Investment - Without Allowance	280		256
Recorder Investment - With Allowance	78		79
Total Recorded Investment	358		335
Related Allowance	25		25
Average Recorded Investment	347	751
Interest Income Recognized	5	6
Commercial and multifamily
Impaired Loans [Abstract]
Unpaid Principal Balance	353		353
Recorder Investment - Without Allowance	353		353
Recorder Investment - With Allowance	0		0
Total Recorded Investment	353		353
Related Allowance	0		0
Average Recorded Investment	353	1,110
Interest Income Recognized	5	7
Construction and land
Impaired Loans [Abstract]
Unpaid Principal Balance	473		1,215
Recorder Investment - Without Allowance	435		1,177
Recorder Investment - With Allowance	38		38
Total Recorded Investment	473		1,215
Related Allowance	7		7
Average Recorded Investment	844	133
Interest Income Recognized	14	2
Manufactured homes
Impaired Loans [Abstract]
Unpaid Principal Balance	433		445
Recorder Investment - Without Allowance	57		46
Recorder Investment - With Allowance	370		394
Total Recorded Investment	427		440
Related Allowance	341		349
Average Recorded Investment	434	444
Interest Income Recognized	9	10
Floating homes
Impaired Loans [Abstract]
Unpaid Principal Balance	524		290
Recorder Investment - Without Allowance	524		290
Recorder Investment - With Allowance	0		0
Total Recorded Investment	524		290
Related Allowance	0		0
Average Recorded Investment	407
Interest Income Recognized	8	0
Other consumer
Impaired Loans [Abstract]
Unpaid Principal Balance	140		143
Recorder Investment - Without Allowance	0		0
Recorder Investment - With Allowance	140		143
Total Recorded Investment	140		143
Related Allowance	52		$ 54
Average Recorded Investment	141	177
Interest Income Recognized	$ 2	$ 3

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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-Publisher FASB
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-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5258-111524

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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-Publisher FASB
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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without 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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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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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