SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Revenue by Solution (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Total revenues	$ 44,312	$ 40,141	$ 38,188
Revenue Percentage	100.00%	100.00%	100.00%
Mailbacks
Disaggregation of Revenue [Line Items]
Total revenues	$ 24,501	$ 22,272	$ 24,625
Revenue Percentage	55.20%	55.50%	64.50%
Route-based pickup services
Disaggregation of Revenue [Line Items]
Total revenues	$ 9,029	$ 7,492	$ 6,348
Revenue Percentage	20.40%	18.70%	16.60%
Unused medications
Disaggregation of Revenue [Line Items]
Total revenues	$ 6,936	$ 5,907	$ 3,377
Revenue Percentage	15.70%	14.70%	8.80%
Third party treatment services
Disaggregation of Revenue [Line Items]
Total revenues	$ 290	$ 891	$ 413
Revenue Percentage	0.70%	2.20%	1.10%
Other
Disaggregation of Revenue [Line Items]
Total revenues	$ 3,556	$ 3,579	$ 3,425
Revenue Percentage	8.00%	8.90%	9.00%