Deferred Revenue - Summary Current vs. Long Term Deferred Revenue (Details) - USD ($)	Dec. 31, 2017	Jul. 31, 2017	Jul. 31, 2016
Deferred Revenue Arrangement [Line Items]
Current portion	$ 378,700	$ 253,619	$ 250,000
Deferred revenue	2,115,805	2,306,527	2,350,000
Total	2,495,000	2,561,000	2,600,000
OORT
Deferred Revenue Arrangement [Line Items]
Current portion	0
Deferred revenue	0
Total	0	0	0
BED
Deferred Revenue Arrangement [Line Items]
Current portion	379,000
Deferred revenue	516,000
Total	895,000	961,000	1,000,000
Other Opioid Treatments
Deferred Revenue Arrangement [Line Items]
Current portion	0
Deferred revenue	1,600,000
Total	$ 1,600,000	$ 1,600,000	$ 1,600,000