Loans - Activity in Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Summary of activity in allowance for loan losses [Roll Forward]
Beginning Allowance	$ 5,893	$ 5,577	$ 5,640	$ 5,774
Charge-offs	(311)	(12)	(317)	(32)
Recoveries	49	5	58	28
Provision (Recapture)	400	(200)	650	(400)
Ending Allowance	6,031	5,370	6,031	5,370
Commercial business
Summary of activity in allowance for loan losses [Roll Forward]
Beginning Allowance	395	424	331	356
Charge-offs	(300)	0	(300)	0
Recoveries	0	1	0	1
Provision (Recapture)	406	84	470	152
Ending Allowance	501	509	501	509
Unallocated
Summary of activity in allowance for loan losses [Roll Forward]
Beginning Allowance	865	819	948	1,029
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Recapture)	(65)	(38)	(148)	(248)
Ending Allowance	800	781	800	781
One-to-four family
Summary of activity in allowance for loan losses [Roll Forward]
Beginning Allowance	1,129	1,189	1,120	1,314
Charge-offs	0	0	0	0
Recoveries	4	0	8	0
Provision (Recapture)	16	(50)	21	(175)
Ending Allowance	1,149	1,139	1,149	1,139
Home equity
Summary of activity in allowance for loan losses [Roll Forward]
Beginning Allowance	166	229	178	202
Charge-offs	0	0	0	0
Recoveries	37	4	39	7
Provision (Recapture)	(49)	(68)	(63)	(44)
Ending Allowance	154	165	154	165
Commercial and multifamily
Summary of activity in allowance for loan losses [Roll Forward]
Beginning Allowance	1,918	1,035	1,696	1,638
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Recapture)	73	432	295	(171)
Ending Allowance	1,991	1,467	1,991	1,467
Construction and land
Summary of activity in allowance for loan losses [Roll Forward]
Beginning Allowance	499	996	492	431
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Recapture)	124	(532)	131	33
Ending Allowance	623	464	623	464
Manufactured homes
Summary of activity in allowance for loan losses [Roll Forward]
Beginning Allowance	482	511	480	427
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Recapture)	(120)	(48)	(118)	36
Ending Allowance	362	463	362	463
Floating homes
Summary of activity in allowance for loan losses [Roll Forward]
Beginning Allowance	318	254	283	265
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision (Recapture)	6	8	41	(3)
Ending Allowance	324	262	324	262
Other consumer
Summary of activity in allowance for loan losses [Roll Forward]
Beginning Allowance	121	120	112	112
Charge-offs	(11)	(12)	(17)	(32)
Recoveries	8	0	11	20
Provision (Recapture)	9	12	21	20
Ending Allowance	$ 127	$ 120	$ 127	$ 120

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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- Definition

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

+ References

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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- Definition

Amount of expense related to estimated loss from loan and lease transactions.

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