DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative 1) (Details)	May 31, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-06-01
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue, remaining performance obligation expect to recognize in percentage	42.00%
Revenue, remaining Performance obligation, expected timing of satisfaction, year	2020
Revenue, remaining Performance obligation, expected timing of satisfaction, period	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-03-01
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue, remaining performance obligation expect to recognize in percentage	30.00%
Revenue, remaining Performance obligation, expected timing of satisfaction, year	2021
Revenue, remaining Performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-03-01
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue, remaining performance obligation expect to recognize in percentage	17.00%
Revenue, remaining Performance obligation, expected timing of satisfaction, year	2022
Revenue, remaining Performance obligation, expected timing of satisfaction, period	1 year