LOANS - Composition of loans receivable by delinquency status (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current
Residential 1-4 family	$ 334,992	$ 342,881
Residential 5+ multifamily	37,229	35,648
Construction of residential 1-4 family	13,206	12,041
Home equity lines of credit	33,503	33,806
Residential real estate	418,930	424,376
Commercial	283,734	281,053
Construction of commercial	12,053	8,835
Commercial real estate	295,787	289,888
Farm land	3,494	4,185
Vacant land	8,070	8,280
Real estate secured	726,281	726,729
Commercial and industrial	163,971	162,507
Municipal	22,260	14,344
Consumer	6,288	4,504
Loans receivable, gross	918,800	908,084
Past due 30-59 days
Residential 1-4 family	228	1,100
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit	164	235
Residential real estate	392	1,335
Commercial	7	264
Construction of commercial
Commercial real estate	7	264
Farm land
Vacant land		42
Real estate secured	399	1,641
Commercial and industrial	6
Municipal
Consumer	1	2
Loans receivable, gross	406	1,643
Past due 60-89 days
Residential 1-4 family	203	521
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit	46	33
Residential real estate	249	554
Commercial	71	240
Construction of commercial
Commercial real estate	71	240
Farm land	192
Vacant land	41
Real estate secured	553	794
Commercial and industrial	100	38
Municipal
Consumer	1	6
Loans receivable, gross	654	838
Past due 90-179 days
Residential 1-4 family	269
Residential 5+ multifamily		633
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	269	633
Commercial	293	833
Construction of commercial		141
Commercial real estate	293	974
Farm land
Vacant land
Real estate secured	562	1,607
Commercial and industrial	1
Municipal
Consumer
Loans receivable, gross	563	1,607
Past due 180 days and over
Residential 1-4 family	783	1,360
Residential 5+ multifamily	861	229
Construction of residential 1-4 family
Home equity lines of credit	359	359
Residential real estate	2,003	1,948
Commercial	144	1,209
Construction of commercial
Commercial real estate	144	1,209
Farm land
Vacant land
Real estate secured	2,147	3,157
Commercial and industrial		360
Municipal
Consumer
Loans receivable, gross	2,147	3,517
Past due 30 days and over
Residential 1-4 family	1,483	2,981
Residential 5+ multifamily	861	862
Construction of residential 1-4 family
Home equity lines of credit	569	627
Residential real estate	2,913	4,470
Commercial	515	2,546
Construction of commercial		141
Commercial real estate	515	2,687
Farm land	192
Vacant land	41	42
Real estate secured	3,661	7,199
Commercial and industrial	107	398
Municipal
Consumer	2	8
Loans receivable, gross	3,770	7,605
Past due Accruing 90 days and over
Residential 1-4 family	134
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate	134
Commercial	293	654
Construction of commercial		141
Commercial real estate	293	795
Farm land
Vacant land
Real estate secured	427	795
Commercial and industrial	1
Municipal
Consumer
Loans receivable, gross	428	795
Non-accrual
Residential 1-4 family	2,331	2,092
Residential 5+ multifamily	982	1,000
Construction of residential 1-4 family
Home equity lines of credit	463	411
Residential real estate	3,776	3,503
Commercial	928	1,388
Construction of commercial		252
Commercial real estate	928	1,640
Farm land	199	216
Vacant land
Real estate secured	4,903	5,359
Commercial and industrial		360
Municipal
Consumer	38
Loans receivable, gross	$ 4,941	$ 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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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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