NEW ACCOUNTING STANDARD IMPLEMENTED (Details) - USD ($)  | 
Jun. 30, 2019  | 
Jan. 01, 2019  | 
|---|---|---|
| NEW ACCOUNTING STANDARD IMPLEMENTED | ||
| Operating lease, liability | $ 8,401,000 | $ 8,900,000 | 
| Operating lease, right-of-use asset | $ 8,900,000 | 
| X | ||||||||||
- References No definition available. 
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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