LONG-TERM BORROWINGS - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
LONG-TERM BORROWINGS    
FHLB adjustable rate as per the terms of convertible borrowings three month London Interbank Offered Rate  
Capital lease, carrying amount of land $ 827 $ 827
Present value of minimum lease payments $ 373 $ 400
Capital Lease Obligations    
LONG-TERM BORROWINGS    
Interest rate for capital lease obligation 2.75%  
Revolving line of credit with the FHLB | Jersey Shore State Bank    
LONG-TERM BORROWINGS    
Remaining borrowing capacity $ 304,044  
Revolving line of credit with the FHLB | Luzerne National Bank Corporation    
LONG-TERM BORROWINGS    
Remaining borrowing capacity $ 148,527  
Minimum    
LONG-TERM BORROWINGS    
Conversion term of FHLB loans 3 months  
Maximum    
LONG-TERM BORROWINGS    
Conversion term of FHLB loans 5 years