SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016 USD ($) Security $ / shares	Sep. 30, 2016 USD ($) $ / shares	Jun. 30, 2016 USD ($) $ / shares	Mar. 31, 2016 USD ($) $ / shares	Dec. 31, 2015 USD ($) $ / shares	Sep. 30, 2015 USD ($) $ / shares	Jun. 30, 2015 USD ($) $ / shares	Mar. 31, 2015 USD ($) $ / shares	Dec. 31, 2016 USD ($) Branches Segment Security $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares
Business and Organization [Abstract]
Number of full service banking offices | Branches									25
Operating Segments [Abstract]
Number of operating segments | Segment									1
Cash and Cash Equivalents [Abstract]
Interest earning deposits maturity, Maximum for inclusion as cash equivalents									90 days
Investment Securities [Abstract]
Number of classifications of investment securities | Security	3								3
Held-to-maturity securities | $	$ 0				$ 0				$ 0	$ 0
Trading securities | $	0				0				$ 0	0
Number of years significantly below cost to recognize an impairment									1 year
Allowance for Loan Losses [Abstract]
Number of days past for loan to be considered impaired, Maximum									90 days
Goodwill [Abstract]
Goodwill impairment loss | $									$ 0	0	$ 0
Bank Owned Life Insurance [Abstract]
Benefit in excess of the cash surrender value									50.00%
Basic earnings per share computation [Abstract]
Net income applicable to common stock | $	$ 3,171	$ 3,153	$ 3,031	$ 3,283	$ 2,460	$ 2,857	$ 3,189	$ 3,120	$ 12,638	$ 11,626	$ 13,385
Weighted average common shares outstanding (in shares) | shares									3,341,933	3,063,906	3,070,922
Earnings per share - basic (in dollars per share) | $ / shares	$ 0.95	$ 0.94	$ 0.91	$ 0.98	$ 0.79	$ 0.94	$ 1.04	$ 1.02	$ 3.78	$ 3.79	$ 4.36
Diluted earnings per share computation [Abstract]
Net income applicable to common stock | $	$ 3,171	$ 3,153	$ 3,031	$ 3,283	$ 2,460	$ 2,857	$ 3,189	$ 3,120	$ 12,638	$ 11,626	$ 13,385
Weighted average common shares outstanding for basic earnings per share (in shares) | shares									3,341,933	3,063,906	3,070,922
Add: Dilutive effects of restricted stock (in shares) | shares									1,556	1,360	1,295
Weighted average common shares outstanding for dilutive earnings per share (in shares) | shares									3,343,489	3,065,266	3,072,217
Earnings per share - dilutive (in dollars per share) | $ / shares	$ 0.95	$ 0.94	$ 0.91	$ 0.98	$ 0.79	$ 0.94	$ 1.04	$ 1.02	$ 3.78	$ 3.79	$ 4.36
Minimum [Member]
Allowance for Loan Losses [Abstract]
Number of days past for loan to be considered impaired, Maximum									90 days
Furniture, Fixtures and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life									3 years
Furniture, Fixtures and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life									15 years
Building Premises [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life									5 years
Building Premises [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life									40 years
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Life									10 years
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Life									4 years
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive restricted stock excluded from net income per share calculations (in shares) | shares									3,087	2,105	2,248
Restricted Stock [Member] | Minimum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive stock share price range (in dollars per share) | $ / shares									$ 53.15	$ 53.15	$ 50.50
Restricted Stock [Member] | Maximum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive stock share price range (in dollars per share) | $ / shares									$ 46.69	$ 50.15	$ 37.10