Going Concern (Details Textual)	Oct. 31, 2016 USD ($) $ / shares
Going Concern [Line Items]
Working Capital Deficit \| $	$ 2,798,915
Share Price \| $ / shares	$ 0.001

Amount of working capital deficit as of the balance sheet date.

No definition available.

Name:	opnt_WorkingCapitalDeficit
Namespace Prefix:	opnt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant