ACQUISITION (Details) (USD $)	0 Months Ended		12 Months Ended			0 Months Ended
	Jan. 11, 2013	Jan. 24, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 29, 2014
Liabilities Assumed:
Goodwill resulting from merger			$ 27,638,000	$ 14,186,000	$ 5,915,000
First Capital
Consideration Paid:
Common shares issued (888,811)	12,354,000
Cash paid to shareholders	7,828,000
Total value of consideration paid	20,182,000
Identifiable Assets Acquired:
Cash and cash equivalents	17,632,000
Investment securities:
Available-for-sale	21,606,000
Held-to-maturity	384,000
Federal Reserve Bank stock	157,000
Federal Home Loan Bank stock	763,000
Loans	98,904,000
Premises and equipment	3,949,000
Bank owned life insurance	3,687,000
Core deposit intangible	2,574,000
Other real estate owned	127,000
Deferred income taxes	185,000
Other assets	1,380,000
Total identifiable assets acquired	151,348,000
Liabilities Assumed:
Deposits	136,823,000
Long-term debt	1,792,000
Other liabilities	822,000
Total liabilities assumed	139,437,000
Total Identifiable Net Assets Acquired	11,911,000
Goodwill resulting from merger	8,271,000
Unaudited pro forma information [Abstract]
Shares issued (in shares)	888,811
Chillicothe, Ohio
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of branches	2
Frankfort, Ohio
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of branches	1
Clarksburg, Ohio
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of branches	1
Washington Court House, Ohio
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of branches	1
Eaton National Bank
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of branches		5
Consideration Paid:
Cash paid to shareholders		24,750,000
Total value of consideration paid		24,750,000
Identifiable Assets Acquired:
Cash and cash equivalents		15,635,000
Investment securities:
Available-for-sale		35,859,000
Federal Reserve Bank stock		41,000
Federal Home Loan Bank stock		784,000
Loans		115,944,000
Premises and equipment		1,314,000
Bank owned life insurance		3,618,000
Core deposit intangible		2,466,000
Other real estate owned		262,000
Other assets		1,624,000
Total identifiable assets acquired		177,547,000
Liabilities Assumed:
Deposits		165,335,000
Short-term borrowings		651,000
Other liabilities		263,000
Total liabilities assumed		166,249,000
Total Identifiable Net Assets Acquired		11,298,000
Goodwill resulting from merger		13,452,000
Estimated amount of acquiree's total revenue and net income included in acquirer's income statement [Abstract]
Total revenue			6,608,000
Net income			2,997,000
Unaudited pro forma information [Abstract]
Total revenue			44,768,000	47,183,000	43,287,000
Net income			10,275,000	10,670,000	10,668,000
Basic earnings per common share (in dollars per share)			$ 1.11	$ 1.36	$ 1.28
Diluted earnings per common share (in dollars per share)			$ 1.09	$ 1.34	$ 1.26
New Paris, Ohio
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of branches		1
Lewisburg, Ohio
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of branches		1
West Alexandria, Ohio
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of branches		1
Eaton, Ohio
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of branches		2
Citizens National Bank
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Number of branches	6
BNB Bancorp, Inc.
Consideration Paid:
Total value of consideration paid						$ 12,574,170