XML 84 R70.htm IDEA: XBRL DOCUMENT v3.10.0.1
LEASE COMMITMENTS (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Leases [Abstract]    
Rental expense $ 890 $ 642
Description of lessee leasing arrangement, operating leases ACNB leases space at several of its owned offices to other unrelated organizations.  
Total rental income $ 131 $ 60