LOANS - Composition of loans receivable by delinquency status (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current
Residential 1-4 family	$ 349,628	$ 344,085
Residential 5+ multifamily	34,147	34,594
Construction of residential 1-4 family	12,214	11,889
Home equity lines of credit	31,300	33,522
Residential real estate	427,289	424,090
Commercial	307,973	289,103
Construction of commercial	10,922	8,466
Commercial real estate	318,895	297,569
Farm land	3,436	3,461
Vacant land	14,447	7,852
Real estate secured	764,067	732,972
Commercial and industrial	157,341	169,262
Municipal	20,964	21,914
Consumer	8,190	6,382
Loans receivable, gross	950,562	930,530
Past due 30-59 days
Residential 1-4 family	3,211	971
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit	337	152
Residential real estate	3,548	1,123
Commercial	2,114	336
Construction of commercial
Commercial real estate	2,114	336
Farm land	176	180
Vacant land
Real estate secured	5,838	1,639
Commercial and industrial	83	2
Municipal
Consumer	4
Loans receivable, gross	5,925	1,641
Past due 60-89 days
Residential 1-4 family	236	351
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit	89	46
Residential real estate	325	397
Commercial	278	141
Construction of commercial
Commercial real estate	278	141
Farm land
Vacant land		41
Real estate secured	603	579
Commercial and industrial	25	146
Municipal
Consumer	1	1
Loans receivable, gross	629	726
Past due 90-179 days
Residential 1-4 family	37	200
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit	103
Residential real estate	140	200
Commercial		71
Construction of commercial
Commercial real estate		71
Farm land
Vacant land	41
Real estate secured	181	271
Commercial and industrial	124	1
Municipal
Consumer		2
Loans receivable, gross	305	274
Past due 180 days and over
Residential 1-4 family		692
Residential 5+ multifamily	861	861
Construction of residential 1-4 family
Home equity lines of credit	78	78
Residential real estate	939	1,631
Commercial	71	144
Construction of commercial
Commercial real estate	71	144
Farm land
Vacant land
Real estate secured	1,010	1,775
Commercial and industrial
Municipal
Consumer
Loans receivable, gross	1,010	1,775
Past due 30 days and over
Residential 1-4 family	3,484	2,214
Residential 5+ multifamily	861	861
Construction of residential 1-4 family
Home equity lines of credit	607	276
Residential real estate	4,952	3,351
Commercial	2,463	692
Construction of commercial
Commercial real estate	2,463	692
Farm land	176	180
Vacant land	41	41
Real estate secured	7,632	4,264
Commercial and industrial	232	149
Municipal
Consumer	5	3
Loans receivable, gross	7,869	4,416
Past due Accruing 90 days and over
Residential 1-4 family
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land	41
Real estate secured	41
Commercial and industrial	27	1
Municipal
Consumer		2
Loans receivable, gross	68	3
Non-accrual
Residential 1-4 family	1,019	1,551
Residential 5+ multifamily	861	861
Construction of residential 1-4 family
Home equity lines of credit	207	105
Residential real estate	2,087	2,517
Commercial	755	914
Construction of commercial
Commercial real estate	755	914
Farm land	181	186
Vacant land
Real estate secured	3,023	3,617
Commercial and industrial	97
Municipal
Consumer
Loans receivable, gross	$ 3,120	$ 3,617

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The fair value as of the balance sheet date of firm holdings in fixed income obligations issued by state and local governments and authorities. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.

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Total of (1) improvements, (2) held-for-sale, (3) land and land under development, (4) construction-in-process, (5) mortgage loans held-in-inventory, and (6) other real estate investments which are considered inventory due to being held for sale or disposition.

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Cost of real estate projects incurred for projects for eventual sale or transfer (condominium or time share projects, vacation clubs).

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Carrying amount as of the balance sheet date, net of valuation allowances and impairment losses, of costs of land expected to be developed in the near term plus capitalized costs of development, for purposes of selling completed units to home buyers or commercial or industrial entities..

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Represents mortgage loans held in inventory primarily for sale to others (third parties, businesses, legal entities) in the ordinary course of business.

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Amount of investment in certain other real estate investments not specifically identified elsewhere in the existing taxonomy.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance and after 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.

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The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

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