| MORTGAGE BANKING ACTIVITIES (Summary of mortgage servicing rights) (Details) - Residential Mortgage [Member] $ in Thousands | 6 Months Ended | 
|---|---|
| Jun. 30, 2020  USD ($)  Contracts | |
| Servicing Assets at Fair Value [Line Items] | |
| Number of Residential Mortgage Loans Serviced for Others | Contracts | 1,375 | 
| Outstanding Principal Balance of Residential Mortgage Loans Serviced for Others | $ | $ 355,778 | 
| Weighted Average Interest Rate | 3.94% | 
| Remaining contratual term related to mortgage serviced for others | 318 months | 
| X | ||||||||||
| 
- Definition The total number of residential mortgages serviced. No definition available. 
 | 
| X | ||||||||||
| 
- Definition Remaining contratual term related to mortgage serviced for others, PnMn. No definition available. 
 | 
| X | ||||||||||
| 
- Definition Weighted average interest rate Mortgages Serviced. No definition available. 
 | 
| X | ||||||||||
| 
- Definition Amount, before allowance for credit loss, of financing receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
 | 
| X | ||||||||||
| 
- 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. 
 | 
| X | ||||||||||
| 
- Details 
 |