FAIR VALUE (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Fair Value Measurements
Blended interest rate for determining fair value of nonaccrual loans (as a percent)	0.00%
Fair value of commitments	$ 0
Financial assets:
Interest-bearing deposits	12,712	$ 13,452
Securities available for sale	113,460	116,748
Marketable Securities	113,460	116,748
Carrying Amount
Financial assets:
Total financial assets	1,232,179	1,235,967
Financial liabilities:
Total financial liabilities	1,144,645	1,155,464
Estimated Fair Value
Financial assets:
Total financial assets	1,212,726	1,215,500
Financial liabilities:
Total financial liabilities	1,099,849	1,104,871
Level 1 | Carrying Amount
Financial assets:
Cash and cash equivalents	56,963	64,157
Level 1 | Estimated Fair Value
Financial assets:
Cash and cash equivalents	56,963	64,157
Level 2 | Carrying Amount
Financial assets:
Interest-bearing deposits	12,712	13,452
Federal Home Loan Bank stock	4,924	4,924
Financial liabilities:
Deposits	1,097,248	1,097,537
Borrowings	46,878	57,536
Level 2 | Estimated Fair Value
Financial assets:
Interest-bearing deposits	12,712	13,452
Federal Home Loan Bank stock	4,924	4,924
Financial liabilities:
Deposits	1,053,029	1,047,709
Borrowings	46,301	56,771
Level 3 | Carrying Amount
Financial assets:
Net loans	1,040,274	1,033,681
Accrued interest receivable	3,846	3,005
Financial liabilities:
Accrued interest payable	519	391
Level 3 | Estimated Fair Value
Financial assets:
Net loans	1,020,821	1,013,214
Accrued interest receivable	3,846	3,005
Financial liabilities:
Accrued interest payable	519	391
Available-for-sale Securities
Financial assets:
Marketable Securities	113,460	116,748
Available-for-sale Securities | Level 2 | Carrying Amount
Financial assets:
Marketable Securities	111,972	115,260
Available-for-sale Securities | Level 2 | Estimated Fair Value
Financial assets:
Marketable Securities	111,972	115,260
Available-for-sale Securities | Level 3 | Carrying Amount
Financial assets:
Marketable Securities	1,488	1,488
Available-for-sale Securities | Level 3 | Estimated Fair Value
Financial assets:
Marketable Securities	1,488	1,488
Corporate
Financial assets:
Marketable Securities	20,158	20,064
US Agencies
Financial assets:
Marketable Securities	15,847	15,970
US Agencies - MBS
Financial assets:
Marketable Securities	31,377	32,840
Obligations of states and political subdivisions
Financial assets:
Marketable Securities	$ 46,078	$ 47,874