Note 14 - Income Taxes - Provision for Taxes (Details) - USD ($)	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
US operations	$ 1,419,051	$ 3,485,411
Foreign operations	170,352	95,221
Total	1,589,403	3,580,632
Current:
Federal	1,573,044	2,929,891
States	138,728	324,111
Foreign	191,948	71,407
Total current	1,903,720	3,325,409
Deferred:
Federal	(173,657)	70,143
States	(119,064)	162,220
Foreign	(21,596)	22,860
Total deferred	(314,317)	255,223
Total	$ 1,589,403	$ 3,580,632