FAIR VALUE (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Financial Assets:
Estimated Fair Value	$ 265,157,000		$ 265,157,000		$ 293,091,000
Impaired Loans, Fair Value Disclosure [Abstract]
Level 2 to level 1 transfer amount	0	$ 0	0	$ 0
Provision for loan and lease losses	(2,362,000)	(421,000)	(3,071,000)	(1,461,000)
Recurring
Financial Assets:
Obligations of U.S. Government and U.S. Government sponsored enterprises	15,450,000		15,450,000		15,491,000
Mortgage-backed securities, residential	198,640,000		198,640,000		219,909,000
Obligations of states and political subdivisions	47,029,000		47,029,000		53,132,000
Corporate bonds and notes	250,000		250,000		251,000
SBA loan pools	3,788,000		3,788,000		4,308,000
Estimated Fair Value	265,157,000		265,157,000		293,091,000
Available-for-sale Securities, Equity Securities	1,277,000		1,277,000		1,192,000
Derivative assets	2,304,000		2,304,000		974,000
Financial Liabilities:
Derivative liabilities	2,322,000		2,322,000		1,049,000
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets:
Obligations of U.S. Government and U.S. Government sponsored enterprises	0		0		0
Mortgage-backed securities, residential	0		0		0
Obligations of states and political subdivisions	0		0		0
Corporate bonds and notes	0		0		0
SBA loan pools	0		0		0
Estimated Fair Value	0		0		0
Available-for-sale Securities, Equity Securities	1,277,000		1,277,000		1,192,000
Derivative assets	0		0		0
Financial Liabilities:
Derivative liabilities	0		0		0
Recurring | Significant Other Observable Inputs (Level 2)
Financial Assets:
Obligations of U.S. Government and U.S. Government sponsored enterprises	15,450,000		15,450,000		15,491,000
Mortgage-backed securities, residential	198,640,000		198,640,000		219,909,000
Obligations of states and political subdivisions	47,029,000		47,029,000		53,132,000
Corporate bonds and notes	250,000		250,000		251,000
SBA loan pools	3,788,000		3,788,000		4,308,000
Estimated Fair Value	265,157,000		265,157,000		293,091,000
Available-for-sale Securities, Equity Securities	0		0		0
Derivative assets	2,304,000		2,304,000		974,000
Financial Liabilities:
Derivative liabilities	2,304,000		2,304,000		974,000
Recurring | Significant Unobservable Inputs (Level 3)
Financial Assets:
Obligations of U.S. Government and U.S. Government sponsored enterprises	0		0		0
Mortgage-backed securities, residential	0		0		0
Obligations of states and political subdivisions	0		0		0
Corporate bonds and notes	0		0		0
SBA loan pools	0		0		0
Estimated Fair Value	0		0		0
Available-for-sale Securities, Equity Securities	0		0		0
Derivative assets	0		0		0
Financial Liabilities:
Derivative liabilities	18,000		18,000		75,000
Impaired Loans: | Non-recurring
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans	12,000		12,000		507,000
Provision for loan and lease losses			0		(175,000)
Impaired Loans: | Non-recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans	0		0		0
Impaired Loans: | Non-recurring | Significant Other Observable Inputs (Level 2)
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans	0		0		0
Impaired Loans: | Non-recurring | Significant Unobservable Inputs (Level 3)
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans	12,000		12,000		507,000
Other real estate owned: | Non-recurring
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	886,000		886,000		1,940,000
Provision for loan and lease losses			0		(43,000)
Other real estate owned: | Non-recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	0		0		0
Other real estate owned: | Non-recurring | Significant Other Observable Inputs (Level 2)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	0		0		0
Other real estate owned: | Non-recurring | Significant Unobservable Inputs (Level 3)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	886,000		886,000		1,940,000
Commercial mortgages, other | Other real estate owned: | Non-recurring
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	534,000		534,000		1,483,000
Provision for loan and lease losses			0		(43,000)
Commercial mortgages, other | Other real estate owned: | Non-recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	0		0		0
Commercial mortgages, other | Other real estate owned: | Non-recurring | Significant Other Observable Inputs (Level 2)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	0		0		0
Commercial mortgages, other | Other real estate owned: | Non-recurring | Significant Unobservable Inputs (Level 3)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	534,000		534,000		1,483,000
Home equity lines and loans | Other real estate owned: | Non-recurring
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net					75,000
Provision for loan and lease losses					0
Home equity lines and loans | Other real estate owned: | Non-recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net					0
Home equity lines and loans | Other real estate owned: | Non-recurring | Significant Other Observable Inputs (Level 2)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net					0
Home equity lines and loans | Other real estate owned: | Non-recurring | Significant Unobservable Inputs (Level 3)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net					75,000
Commercial and agricultural:
Impaired Loans, Fair Value Disclosure [Abstract]
Provision for loan and lease losses	(1,579,000)	(199,000)	(1,616,000)	(240,000)
Commercial and agricultural: | Commercial and industrial | Impaired Loans: | Non-recurring
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans	12,000		12,000		96,000
Provision for loan and lease losses			0		(70,000)
Commercial and agricultural: | Commercial and industrial | Impaired Loans: | Non-recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans	0		0		0
Commercial and agricultural: | Commercial and industrial | Impaired Loans: | Non-recurring | Significant Other Observable Inputs (Level 2)
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans	0		0		0
Commercial and agricultural: | Commercial and industrial | Impaired Loans: | Non-recurring | Significant Unobservable Inputs (Level 3)
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans	12,000		12,000		96,000
Commercial mortgages:
Impaired Loans, Fair Value Disclosure [Abstract]
Provision for loan and lease losses	(244,000)	(27,000)	(369,000)	(505,000)
Commercial mortgages: | Commercial mortgages | Impaired Loans: | Non-recurring
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans					411,000
Provision for loan and lease losses					(105,000)
Commercial mortgages: | Commercial mortgages | Impaired Loans: | Non-recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans					0
Commercial mortgages: | Commercial mortgages | Impaired Loans: | Non-recurring | Significant Other Observable Inputs (Level 2)
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans					0
Commercial mortgages: | Commercial mortgages | Impaired Loans: | Non-recurring | Significant Unobservable Inputs (Level 3)
Impaired Loans, Fair Value Disclosure [Abstract]
Total impaired loans					411,000
Residential mortgages
Impaired Loans, Fair Value Disclosure [Abstract]
Provision for loan and lease losses	(109,000)	(40,000)	(289,000)	(24,000)
Residential mortgages | Other real estate owned: | Non-recurring
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	204,000		204,000		382,000
Provision for loan and lease losses			0		0
Residential mortgages | Other real estate owned: | Non-recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	0		0		0
Residential mortgages | Other real estate owned: | Non-recurring | Significant Other Observable Inputs (Level 2)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	0		0		0
Residential mortgages | Other real estate owned: | Non-recurring | Significant Unobservable Inputs (Level 3)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	204,000		204,000		$ 382,000
Consumer loans:
Impaired Loans, Fair Value Disclosure [Abstract]
Provision for loan and lease losses	(430,000)	$ (155,000)	(797,000)	$ (692,000)
Consumer loans: | Home equity lines and loans | Other real estate owned: | Non-recurring
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	148,000		148,000
Provision for loan and lease losses			0
Consumer loans: | Home equity lines and loans | Other real estate owned: | Non-recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	0		0
Consumer loans: | Home equity lines and loans | Other real estate owned: | Non-recurring | Significant Other Observable Inputs (Level 2)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	0		0
Consumer loans: | Home equity lines and loans | Other real estate owned: | Non-recurring | Significant Unobservable Inputs (Level 3)
Impaired Loans, Fair Value Disclosure [Abstract]
Total other real estate owned, net	$ 148,000		$ 148,000