Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Net sales	$ 7,280,723	$ 6,171,625
Cost of goods sold, exclusive of depreciation from consigned equipment	2,177,355	1,912,007
Gross profit	5,103,368	4,259,618
Operating expenses:
Selling expenses	3,570,713	3,325,687
General and administrative expenses	2,573,131	1,931,821
Research and development expenses	901,274	492,084
Total operating expenses	7,045,118	5,749,592
Loss from operations	(1,941,750)	(1,489,974)
Other income (expense):
Interest income	13	19
Royalty income and license fees	452,971	944,068
Other	(4,458)	(1,996)
Total other income	448,526	942,091
Loss from operations before income taxes	(1,493,224)	(547,883)
Income tax benefit	(281,000)	(26,000)
Net loss	$ (1,212,224)	$ (521,883)
Net loss per share - Basic (in dollars per share)	$ (0.14)	$ (0.07)
Net loss per share - Diluted (in dollars per share)	$ (0.14)	$ (0.07)
Weighted average shares - Basic (in shares)	8,958,405	7,809,385
Weighted average shares - Diluted (in shares)	8,958,405	7,809,385