Note 6 - Provision (Benefit) for Income Taxes (Details) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Current U.S. federal tax expense (benefit)
Current U.S. state tax expense (benefit)	31,000	5,000
Current U.K. corporate tax expense (benefit)	(162,000)	811,000
Current tax expense (benefit)	(131,000)	816,000
Deferred U.S. federal tax expense (benefit)
Deferred U.S. state tax expense (benefit)
Deferred U.K. corporate tax expense (benefit)	320,000	6,000
Deferred tax expense (benefit)	359,000	6,000
Total U.S. federal tax expense (benefit)
Total U.S. state tax expense (benefit)	31,000	5,000
Total U.K. corporate tax expense (benefit)	158,000	817,000
Total tax expense (benefit)	$ 189,000	$ 822,000