LOANS - Composition of loans receivable and allowance for loan losses (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Totals	$ 1,040,358	$ 927,413
Collectively evaluated Loans
Residential 1-4 family	352,590	340,847
Residential 5+ multifamily	37,382	34,478
Construction of residential 1-4 family	11,041	11,889
Home equity lines credit	30,021	33,693
Residential real estate	431,034	420,907
Commercial	305,393	285,462
Construction of commercial	13,699	8,466
Commercial real estate	319,092	293,928
Farm land	3,150	3,455
Vacant land	13,705	7,713
Real estate secured	766,981	726,003
Commercial and industrial	246,544	169,285
Municipal	20,707	21,914
Consumer	7,855	6,349
Unallocated allowance
Totals	1,042,087	923,551
Collectively evaluated Allowance
Residential 1-4 family	2,642	2,117
Residential 5+ multifamily	589	446
Construction of residential 1-4 family	87	75
Home equity lines credit	263	197
Residential real estate	3,581	2,835
Commercial	4,836	3,333
Construction of commercial	205	104
Commercial real estate	5,041	3,437
Farm land	60	47
Vacant land	179	66
Real estate secured	8,861	6,385
Commercial and industrial	1,139	1,143
Municipal	36	46
Consumer	55	59
Unallocated allowance	1,132	569
Totals	11,223	8,202
Individually evaluated Loans
Residential 1-4 family	4,928	5,452
Residential 5+ multifamily	971	977
Construction of residential 1-4 family
Home equity lines credit	265	105
Residential real estate	6,164	6,534
Commercial	4,542	4,333
Construction of commercial
Commercial real estate	4,542	4,333
Farm land	174	186
Vacant land	174	180
Real estate secured	11,054	11,233
Commercial and industrial	896	126
Municipal
Consumer	31	36
Unallocated allowance
Totals	11,981	11,395
Individually evaluated Allowance
Residential 1-4 family	406	276
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines credit	20
Residential real estate	426	276
Commercial	324	409
Construction of commercial
Commercial real estate	324	409
Farm land
Vacant land	3	5
Real estate secured	753	690
Commercial and industrial	376	2
Municipal
Consumer	19	1
Unallocated allowance
Totals	1,148	693
Total portfolio Loans
Residential 1-4 family	357,518	346,299
Residential 5+ multifamily	38,353	35,455
Construction of residential 1-4 family	11,041	11,889
Home equity lines credit	30,286	33,798
Residential real estate	437,198	427,441
Commercial	309,935	289,795
Construction of commercial	13,699	8,466
Commercial real estate	323,634	298,261
Farm land	3,324	3,641
Vacant land	13,879	7,893
Real estate secured	778,035	737,236
Commercial and industrial	247,440	169,411
Municipal	20,707	21,914
Consumer	7,886	6,385
Unallocated allowance
Totals	1,054,068	934,946
Total portfolio Allowance
Residential 1-4 family	3,048	2,393
Residential 5+ multifamily	589	446
Construction of residential 1-4 family	87	75
Home equity lines credit	283	197
Residential real estate	4,007	3,111
Commercial	5,160	3,742
Construction of commercial	205	104
Commercial real estate	5,365	3,846
Farm land	60	47
Vacant land	182	71
Real estate secured	9,614	7,075
Commercial and industrial	1,515	1,145
Municipal	36	46
Consumer	74	60
Unallocated allowance	1,132	569
Totals	$ 12,371	$ 8,895

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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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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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