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REVENUE FROM CONTRACTS WITH CUSTOMERS Disaggregation of Revenue (Tables)
 12 Months Ended
Dec. 31, 2018
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue [Table Text Block]
Disaggregation of Revenue:

Deposit fees and other service charges for the years ended December 31, 2018, 2017 and 2016 are summarized as follows (in thousands):
 
Years Ended
December 31
 
2018
 
2017
 
2016
Deposit service charges
18,089

 
16,725

 
16,863

Debit and credit interchange fees
31,713

 
28,358

 
22,578

Debit and credit card expense
(8,511
)
 
(7,390
)
 
(3,078
)
Merchant services income
10,226

 
10,159

 
9,052

Merchant services expenses
(7,767
)
 
(8,335
)
 
(7,245
)
Other service charges
4,324

 
3,935

 
3,741

Total deposit fees and other service charges
48,074

 
43,452

 
41,911