FAIR VALUE - Fair value hierarchy of financial instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Financial assets - Carrying Amount
Cash and cash equivalents	$ 18,071
Loans receivable, net	275,042	$ 282,672
Cash value of life insurance	8,062
Financial liabilities - Carrying Amount
Deposits	321,780	321,440
Short-term debt	20,000	25,000
Financial assets - Fair Value
Loans receivable, net	278,025	282,583
Financial liabilities - Fair Value
Deposits	322,965	300,944
Short-term debt	20,060	$ 25,386
Fair Value.
Financial assets - Fair Value
Cash and cash equivalents	18,071
Loans receivable, net	278,025
Cash value of life insurance	8,062
Financial liabilities - Fair Value
Deposits	322,965
Short-term debt	20,060
Fair Value. \| Level 1
Financial assets - Fair Value
Cash and cash equivalents	18,071
Financial liabilities - Fair Value
Short-term debt	113,328
Fair Value. \| Level 2
Financial assets - Fair Value
Cash value of life insurance	8,062
Financial liabilities - Fair Value
Deposits	209,637
Short-term debt	20,060
Fair Value. \| Level 3
Financial assets - Fair Value
Loans receivable, net	$ 278,025

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Amount 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. Excludes cash and cash equivalents within disposal group and discontinued operation.

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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 the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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No definition available.

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Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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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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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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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.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

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