LOANS - Composition of loans receivable by delinquency status (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current
Residential 1-4 family	$ 344,085	$ 342,881
Residential 5+ multifamily	34,594	35,648
Construction of residential 1-4 family	11,889	12,041
Home equity lines of credit	33,522	33,806
Residential real estate	424,090	424,376
Commercial	289,103	281,053
Construction of commercial	8,466	8,835
Commercial real estate	297,569	289,888
Farm land	3,461	4,185
Vacant land	7,852	8,280
Real estate secured	732,972	726,729
Commercial and industrial	169,262	162,507
Municipal	21,914	14,344
Consumer	6,382	4,504
Loans receivable, gross	930,530	908,084
Past due 30-59 days
Residential 1-4 family	971	1,100
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit	152	235
Residential real estate	1,123	1,335
Commercial	336	264
Construction of commercial
Commercial real estate	336	264
Farm land	180
Vacant land		42
Real estate secured	1,639	1,641
Commercial and industrial	2
Municipal
Consumer		2
Loans receivable, gross	1,641	1,643
Past due 60-89 days
Residential 1-4 family	351	521
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit	46	33
Residential real estate	397	554
Commercial	141	240
Construction of commercial
Commercial real estate	141	240
Farm land
Vacant land	41
Real estate secured	579	794
Commercial and industrial	146	38
Municipal
Consumer	1	6
Loans receivable, gross	726	838
Past due 90-179 days
Residential 1-4 family	200
Residential 5+ multifamily		633
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	200	633
Commercial	71	833
Construction of commercial		141
Commercial real estate	71	974
Farm land
Vacant land
Real estate secured	271	1,607
Commercial and industrial	1
Municipal
Consumer	2
Loans receivable, gross	274	1,607
Past due 180 days and over
Residential 1-4 family	692	1,360
Residential 5+ multifamily	861	229
Construction of residential 1-4 family
Home equity lines of credit	78	359
Residential real estate	1,631	1,948
Commercial	144	1,209
Construction of commercial
Commercial real estate	144	1,209
Farm land
Vacant land
Real estate secured	1,775	3,157
Commercial and industrial		360
Municipal
Consumer
Loans receivable, gross	1,775	3,517
Past due 30 days and over
Residential 1-4 family	2,214	2,981
Residential 5+ multifamily	861	862
Construction of residential 1-4 family
Home equity lines of credit	276	627
Residential real estate	3,351	4,470
Commercial	692	2,546
Construction of commercial		141
Commercial real estate	692	2,687
Farm land	180
Vacant land	41	42
Real estate secured	4,264	7,199
Commercial and industrial	149	398
Municipal
Consumer	3	8
Loans receivable, gross	4,416	7,605
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		654
Construction of commercial		141
Commercial real estate		795
Farm land
Vacant land
Real estate secured		795
Commercial and industrial	1
Municipal
Consumer	2
Loans receivable, gross	3	795
Non-accrual
Residential 1-4 family	1,551	2,092
Residential 5+ multifamily	861	1,000
Construction of residential 1-4 family
Home equity lines of credit	105	411
Residential real estate	2,517	3,503
Commercial	914	1,388
Construction of commercial		252
Commercial real estate	914	1,640
Farm land	186	216
Vacant land
Real estate secured	3,617	5,359
Commercial and industrial		360
Municipal
Consumer
Loans receivable, gross	$ 3,617	$ 5,719

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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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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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