MORTGAGE BANKING ACTIVITIES (Summary of mortgage servicing rights) (Details) - Residential Mortgage [Member] $ in Thousands  | 
3 Months Ended | 
|---|---|
| 
 Mar. 31, 2020  
USD ($)  
Contracts 
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| Servicing Assets at Fair Value [Line Items] | |
| Number of Residential Mortgage Loans Serviced for Others | Contracts | 627 | 
| Outstanding Principal Balance of Residential Mortgage Loans Serviced for Others | $ | $ 165,274 | 
| Weighted Average Interest Rate | 4.56% | 
| Remaining contratual term related to mortgage serviced for others | 316 months | 
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- Definition The total number of residential mortgages serviced. No definition available. 
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- Definition Remaining contratual term related to mortgage serviced for others, PnMn. No definition available. 
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- Definition Weighted average interest rate Mortgages Serviced. No definition available. 
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- Definition Amount, before allowance for credit loss, of financing receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Details 
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