XML 18 R54.htm IDEA: XBRL DOCUMENT v2.4.1.9
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)
12 Months Ended
Dec. 31, 2014
CASH AND CASH EQUIVALENTS [Abstract]  
Short term investment maturity period 3 months
INVESTMENT SECURITIES [Abstract]  
Par value of FHLB share held (in dollars per share) $ 100lcnb_FederalHomeLoanBankParValueOfShareHeld
ALLOWANCE FOR LOAN LOSSES [Abstract]  
Minimum period due consumer loan 120 days
Period for measurement of loan component 36 months
Historical loss period 3 years
STOCK OPTIONS [Abstract]  
Option vesting period 5 years
Premises [Member] | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful life 15 years
Premises [Member] | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful life 40 years
Equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful life 3 years
Equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful life 10 years