FAIR VALUE MEASUREMENTS (Details 4) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
FINANCIAL ASSETS: (Carrying Amount)
Cash and due from banks	$ 9,820	$ 7,913
Interest-bearing deposits in other banks	3,148	826
Time deposits with other banks	1,482	1,482
Debt securities available-for-sale	323,586	348,586
Marketable equity securities	1,684	1,632
Restricted investment in bank stocks	8,561	4,058
Net loans	590,849	551,910
Mortgage servicing rights	329	379
Accrued interest receivable	3,919	4,237
FINANCIAL LIABILITIES: (Carrying Amount)
Core deposits	504,098	570,518
Time deposits	196,581	207,628
Short-term borrowings	151,281	26,296
Long-term borrowings	45,000	65,000
Accrued interest payable	740	490
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS (Carrying Amount)	0	0
FINANCIAL ASSETS: (Fair Value)
Cash and due from banks	9,820	7,913
Interest-bearing deposits in other banks	3,148	826
Time deposits with other banks	1,469	1,482
Debt securities available-for-sale	323,586	348,586
Marketable equity securities	1,684	1,632
Restricted investment in bank stocks	8,561	4,058
Net loans	582,459	550,696
Mortgage servicing rights	329	379
Accrued interest receivable	3,919	4,237
FINANCIAL LIABILITIES: (Fair Value)
Core deposits	504,098	570,518
Time deposits	193,304	206,299
Short-term borrowings	151,402	26,296
Long-term borrowings	44,739	65,336
Accrued interest payable	740	490
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS (Fair Value)	0	0
Fair Value, Inputs, Level 1 [Member]
FINANCIAL ASSETS: (Fair Value)
Cash and due from banks	9,820	7,913
Interest-bearing deposits in other banks	0	0
Time deposits with other banks	0	0
Debt securities available-for-sale	0	0
Marketable equity securities	1,684	1,632
Restricted investment in bank stocks	0	0
Net loans	0	0
Mortgage servicing rights	0	0
Accrued interest receivable	0	0
FINANCIAL LIABILITIES: (Fair Value)
Core deposits	0	0
Time deposits	0	0
Short-term borrowings	0	0
Long-term borrowings	0	0
Accrued interest payable	0	0
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS (Fair Value)	0	0
Fair Value, Inputs, Level 2 [Member]
FINANCIAL ASSETS: (Fair Value)
Cash and due from banks	0	0
Interest-bearing deposits in other banks	3,148	826
Time deposits with other banks	1,469	1,482
Debt securities available-for-sale	323,586	348,586
Marketable equity securities	0	0
Restricted investment in bank stocks	8,561	4,058
Net loans	0	0
Mortgage servicing rights	0	0
Accrued interest receivable	3,919	4,237
FINANCIAL LIABILITIES: (Fair Value)
Core deposits	504,098	570,518
Time deposits	193,304	206,299
Short-term borrowings	151,402	26,296
Long-term borrowings	44,739	65,336
Accrued interest payable	740	490
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS (Fair Value)	0	0
Fair Value, Inputs, Level 3 [Member]
FINANCIAL ASSETS: (Fair Value)
Cash and due from banks	0	0
Interest-bearing deposits in other banks	0	0
Time deposits with other banks	0	0
Debt securities available-for-sale	0	0
Marketable equity securities	0	0
Restricted investment in bank stocks	0	0
Net loans	582,459	550,696
Mortgage servicing rights	329	379
Accrued interest receivable	0	0
FINANCIAL LIABILITIES: (Fair Value)
Core deposits	0	0
Time deposits	0	0
Short-term borrowings	0	0
Long-term borrowings	0	0
Accrued interest payable	0	0
OFF-BALANCE SHEET FINANCIAL INSTRUMENTS (Fair Value)	$ 0	$ 0