Fair Value - Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financial Assets:
Investment securities available-for-sale, at fair value	$ 14,722	$ 17,494
Carrying Value
Financial Assets:
Cash and cash equivalents	16,651	22,219
Investment securities available-for-sale, at fair value	14,722	17,494
Loans receivable held for sale	6,231	22,370
Loans receivable held for investment	355,556	334,851
Accrued interest receivable	1,143	1,073
Federal Home Loan Bank stock		2,916
Financial Liabilities:
Deposits	281,414	291,290
Federal Home Loan Bank advances	70,000	65,000
Junior subordinated debentures	5,100	5,100
Accrued interest payable	334	304
Fair Value
Financial Assets:
Cash and cash equivalents	16,651	22,219
Investment securities available-for-sale, at fair value	14,722	17,494
Loans receivable held for sale	6,270	22,626
Loans receivable held for investment	354,792	333,231
Accrued interest receivable	1,143	1,073
Federal Home Loan Bank stock		2,916
Financial Liabilities:
Deposits	269,418	280,761
Federal Home Loan Bank advances	69,933	64,887
Junior subordinated debentures	4,481	4,503
Accrued interest payable	334	304
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Fair Value
Financial Assets:
Cash and cash equivalents	16,651	22,219
Investment securities available-for-sale, at fair value	1,979	1,976
Accrued interest receivable	78	58
Federal Home Loan Bank stock		2,916
Significant Other Observable Inputs (Level 2) \| Fair Value
Financial Assets:
Investment securities available-for-sale, at fair value	12,743	15,518
Loans receivable held for sale	6,270	22,626
Accrued interest receivable	43	91
Financial Liabilities:
Deposits	269,418	280,761
Federal Home Loan Bank advances	69,933	64,887
Accrued interest payable	324	296
Significant Unobservable Inputs (Level 3) \| Fair Value
Financial Assets:
Loans receivable held for investment	354,792	333,231
Accrued interest receivable	1,022	924
Financial Liabilities:
Junior subordinated debentures	4,481	4,503
Accrued interest payable	$ 10	$ 8

Fair value portion of accrued interest payable.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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Fair value portion of borrowing from Federal Home Loan Bank (FHLBank).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

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-Publisher FASB
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-Topic 310
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-URI http://asc.fasb.org/subtopic&trid=2196772

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