Note 11 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Deferred Tax Assets, Tax Credit Carryforwards, Research	$ 100,000	$ 200,000
Oregon Net Operating Loss, Term (Year)	4 years
Deferred Tax Assets, Valuation Allowance, Total	$ 2,194,000	3,820,000
Deferred Tax Assets, Capital Loss Carryforwards		2,555,000
Unrecognized Tax Benefits, Ending Balance	500,000	600,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	300,000	200,000
Unrecognized Tax Benefits, Income Tax Penalties Accrued	100,000	200,000
Reserve for Unrecognized Tax Benefits, Including Penalties and Interest	900,000	1,000,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	500,000	600,000
Unrecognized Tax Benefits, Period Increase (Decrease), Total	100,000	100,000
Unrecognized Tax Benefits, Interest on Income Taxes Expense	0	14,000
Unrecognized Tax Benefits, Income Tax Penalties Expense	$ 13,000	7,000
Open Tax Year	2017 2018 2019 2020
Research Tax Credit Carryforward [Member]
Deferred Tax Assets, Research and Development Credits, Recognized During Period	$ 45,000
Domestic Tax Authority [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	100,000	900,000
Domestic Tax Authority [Member] | Virticus [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	$ 100,000
Operating Loss Carryforwards, Expiration Period (Year)	3 years
State and Local Jurisdiction [Member]
Operating Loss Carryforwards and Tax Credit Carryforward	$ 2,400,000	2,400,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local, Recognized During Period	100,000
State and Local Jurisdiction [Member] | Oregon State Tax [Member]
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	100,000	100,000
State and Local Jurisdiction [Member] | New York State Division of Taxation and Finance [Member]
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	2,100,000	2,100,000
Deferred Tax Assets, Valuation Allowance, Total	2,100,000	2,100,000
Foreign Tax Authority [Member] | Canada Revenue Agency [Member]
Deferred Tax Assets, Capital Loss Carryforwards		10,700,000
Deferred Tax Assets, Operating Loss Carryforwards, Recognized During Period	6,600,000
Deferred Tax Assets, Operating Loss Carryforwards, Expired During Period	4,200,000
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ (600,000)	$ (800,000)