Note 5 - Deposits (Details Textual)		3 Months Ended	6 Months Ended
	Jan. 15, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2020 GBP (£)	Jun. 30, 2019 USD ($)
Payments to Acquire Intangible Assets			$ 5,000		$ 196,000
VE Technology [Member]
Acquisition Agreement, Intangible Assets, Total Consideration			1,800,000	£ 1,500,000
Acquisition Agreement, Additional Fee for Payments Extension | £				100,000
Acquisition Agreement, Intangible Assets, Consideration Owed | £				£ 650,000
Payments to Acquire Intangible Assets			$ 1,100,000
VE Technology [Member] | Forecast [Member]
Payments to Acquire Intangible Assets	$ 500,000	$ 150,000