SIGNIFICANT ACCOUNTING POLICIES - Summary of Revenue by Solution (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Total revenues	$ 13,599	$ 10,293
Revenue percentage	100.00%	100.00%
Mailbacks
Disaggregation of Revenue [Line Items]
Total revenues	$ 7,117	$ 5,607
Revenue percentage	52.40%	54.50%
Route-based pickup services
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,657	$ 2,128
Revenue percentage	19.50%	20.70%
Unused medications
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,383	$ 1,639
Revenue percentage	17.50%	15.90%
Third party treatment services
Disaggregation of Revenue [Line Items]
Total revenues	$ 19	$ 102
Revenue percentage	0.10%	1.00%
Other
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,423	$ 817
Revenue percentage	10.50%	7.90%