Note 11 - Gain on Extinguishment of Liabilities (Details Textual) - USD ($)	12 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Gain (Loss) on Extinguishment of Liabilities		$ 122,423

The amount of gain (loss) from the extinguishment of deferred compensation liabilities.

No definition available.

Name:	bnet_GainLossOnExtinguishmentOfLiabilities
Namespace Prefix:	bnet_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration