Revenue - Major Products (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Revenue from External Customer [Line Items]
Revenue, net	$ 56,170	$ 56,012	$ 58,167	$ 55,609	$ 54,033	$ 50,562	$ 49,482	$ 49,127	$ 225,958	$ 203,204	$ 199,489
Concentration risk, percentage									100.00%	100.00%	100.00%
Protandim® product line
Revenue from External Customer [Line Items]
Revenue, net									$ 155,499	$ 133,923	$ 130,873
Concentration risk, percentage									68.80%	65.90%	65.60%
TrueScience® product line
Revenue from External Customer [Line Items]
Revenue, net									$ 20,881	$ 21,665	$ 24,440
Concentration risk, percentage									9.20%	10.70%	12.30%
Product and Service, Other [Member]
Revenue from External Customer [Line Items]
Revenue, net									$ 49,578	$ 47,616	$ 44,176
Concentration risk, percentage									22.00%	23.40%	22.10%