LOANS - Composition of loans receivable and allowance for loan losses (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Totals	$ 909,279	$ 801,703
Collectively evaluated Loans
Residential 1-4 family	340,946	312,456
Residential 5+ multifamily	34,835	16,361
Construction of residential 1-4 family	12,041	11,197
Home equity lines credit	33,975	33,658
Residential real estate	421,797	373,672
Commercial	279,389	243,602
Construction of commercial	8,622	9,622
Commercial real estate	288,011	253,224
Farm land	3,969	4,024
Vacant land	8,132	7,684
Real estate secured	721,909	638,604
Commercial and industrial	162,404	132,212
Municipal	14,344	17,494
Consumer	4,512	4,794
Unallocated allowance
Totals	903,169	793,104
Collectively evaluated Allowance
Residential 1-4 family	2,042	1,759
Residential 5+ multifamily	413	154
Construction of residential 1-4 family	83	75
Home equity lines credit	213	235
Residential real estate	2,751	2,223
Commercial	2,907	2,432
Construction of commercial	106	80
Commercial real estate	3,013	2,512
Farm land	33	32
Vacant land	98	129
Real estate secured	5,895	4,896
Commercial and industrial	1,158	952
Municipal	12	30
Consumer	56	80
Unallocated allowance	438	563
Totals	7,559	6,521
Individually evaluated Loans
Residential 1-4 family	4,916	5,183
Residential 5+ multifamily	1,675	1,747
Construction of residential 1-4 family
Home equity lines credit	458	113
Residential real estate	7,049	7,043
Commercial	4,210	5,709
Construction of commercial	354	366
Commercial real estate	4,564	6,075
Farm land	216	250
Vacant land	190	199
Real estate secured	12,019	13,567
Commercial and industrial	501	519
Municipal
Consumer
Unallocated allowance
Totals	12,520	14,086
Individually evaluated Allowance
Residential 1-4 family	107	103
Residential 5+ multifamily		1
Construction of residential 1-4 family
Home equity lines credit	6	1
Residential real estate	113	105
Commercial	141	115
Construction of commercial	16
Commercial real estate	157	115
Farm land
Vacant land	2	3
Real estate secured	272	223
Commercial and industrial		32
Municipal
Consumer
Unallocated allowance
Totals	272	255
Total portfolio Loans
Residential 1-4 family	345,862	317,639
Residential 5+ multifamily	36,510	18,108
Construction of residential 1-4 family	12,041	11,197
Home equity lines credit	34,433	33,771
Residential real estate	428,846	380,715
Commercial	283,599	249,311
Construction of commercial	8,976	9,988
Commercial real estate	292,575	259,299
Farm land	4,185	4,274
Vacant land	8,322	7,883
Real estate secured	733,928	652,171
Commercial and industrial	162,905	132,731
Municipal	14,344	17,494
Consumer	4,512	4,794
Unallocated allowance
Totals	915,689	807,190
Total portfolio Allowance
Residential 1-4 family	2,149	1,862
Residential 5+ multifamily	413	155
Construction of residential 1-4 family	83	75
Home equity lines credit	219	236
Residential real estate	2,864	2,328
Commercial	3,048	2,547
Construction of commercial	122	80
Commercial real estate	3,170	2,627
Farm land	33	32
Vacant land	100	132
Real estate secured	6,167	5,119
Commercial and industrial	1,158	984
Municipal	12	30
Consumer	56	80
Unallocated allowance	438	563
Totals	$ 7,831	$ 6,776

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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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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 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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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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