REVENUE AND DEFERRED REVENUE - Schedule of Deferred Revenue by Reportable Segment (Details 1)	Mar. 31, 2020 USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Performance obligations	$ 164,005
Literacy
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Performance obligations	41,256
E&E Language
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Performance obligations	55,065
Consumer Language
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Performance obligations	$ 67,684