Note 14 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)	Jun. 30, 2017	Jun. 30, 2016
Property and equipment and intangible assets - U.S.	$ 1,291,927	$ 1,132,920
Net operating loss	111,698	1,204,967
Capital loss carryover		6,970
Accruals, reserves and other - foreign	31,840	23,724
Accruals, reserves and other - U.S.	73,884	43,403
Gross deferred tax assets	1,250,748	2,411,984
Less valuation allowance	(29,077)	(1,232,512)
Total deferred tax assets	1,480,272	1,179,472
Intangible assets - foreign	(258,601)	(272,095)
Total deferred tax liabilities	$ (258,601)	$ (272,095)