Revenue - Narrative (Details) $ in Millions	12 Months Ended
	Jun. 30, 2020 USD ($) product_line	Jun. 30, 2019 USD ($)	Jun. 30, 2018
Revenue from External Customer [Line Items]
Handling and restocking fee, percentage	10.00%
Return liability reserve | $	$ 0.3	$ 0.4
Number of product lines | product_line	2
Concentration risk, percentage (in percent)	100.00%	100.00%	100.00%
Product Concentration Risk | Revenue Benchmark | Protandim and TrueScience Product Line
Revenue from External Customer [Line Items]
Concentration risk, percentage (in percent)	77.30%	74.80%	74.30%