| MORTGAGE BANKING ACTIVITIES (key unobservable inputs used in determining the fair value) (Details) | 9 Months Ended | 
|---|---|
| Sep. 30, 2020 | |
| Maximum [Member] | |
| Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract] | |
| Discount Rates | 15.00% | 
| Annual prepayment speeds | 21.24% | 
| Cost of Servicing (Basis points) | 1.10% | 
| Minimum [Member] | |
| Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract] | |
| Discount Rates | 11.00% | 
| Annual prepayment speeds | 9.54% | 
| Cost of Servicing (Basis points) | 0.90% | 
| X | ||||||||||
| 
- Definition Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Cost of Servicing in basis points. No definition available. 
 | 
| X | ||||||||||
| 
- References No definition available. 
 | 
| X | ||||||||||
| 
- Definition Discount rate used to estimate the fair value of servicing assets and servicing liabilities. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
 | 
| X | ||||||||||
| 
- Definition Estimated rate of prepayments of principal on servicing assets and servicing liabilities. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
 | 
| X | ||||||||||
| 
- Details 
 | 
| X | ||||||||||
| 
- Details 
 |