Loans Receivable and Allowance for Loan Losses - Components (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Real estate loans:
Total real estate loans	$ 1,580,212	$ 1,575,170
Other loans:
Total other loans	9,719	5,296
Less: Net unearned fees and discounts	(2,435)	(3,110)
Less: Allowance for loan losses	(2,712)	(2,642)	$ (2,548)
Total unearned fees, discounts and allowance for loan losses	(5,147)	(5,752)
Loans receivable, net	1,584,784	1,574,714
One- to four-family residential
Real estate loans:
Total real estate loans	1,536,781	1,531,149
Multi-family residential
Real estate loans:
Total real estate loans	9,965	12,151
Construction, Commercial and Other Mortgage Loans
Real estate loans:
Total real estate loans	23,382	20,780
Other loans:
Less: Allowance for loan losses	(511)	(443)	(539)
Home Equity Loans and Lines of Credit
Real estate loans:
Total real estate loans	10,084	11,090
Other loans:
Less: Allowance for loan losses	(1)	(1)	$ (1)
Loans on Deposit Accounts
Other loans:
Total other loans	235	357
Consumer and Other
Other loans:
Total other loans	$ 9,484	$ 4,939

Represents the total amount of net unearned fees and discounts and allowance for loan losses.

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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.

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Amount of investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

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Amount, before allowance for credit loss, of financing receivable.

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