Note 6 - Deferred Tax Assets (Liabilities) (Details) - USD ($)	Jun. 30, 2016	Jun. 30, 2015
Deferred tax assets:
State taxes	$ 1,000	$ 2,000
Net operating loss carry-forwards	2,759,000	2,768,000
Write-down of investments	1,745,000	1,736,000
Equity-based compensation	67,000	41,000
Reserves and accruals	274,000	284,000
Deferred rent	3,000	55,000
Domestic intangibles and other long-lived assets	101,000	133,000
Total deferred tax assets	4,950,000	5,019,000
Deferred tax liabilities:
Intangible and other long-lived	(546,000)	(58,000)
Valuation allowance	(4,939,000)	(5,019,000)
Net deferred tax liabilities	$ (535,000)	$ (58,000)