UNEARNED REVENUE (Tables)
|6 Months Ended|
Jun. 30, 2020
|Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]|
Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.
Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef