Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating activities
Net loss	$ (5,040,998)	$ (5,830,800)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	1,180,206	1,046,511
Disposals of property, plant and equipment		138,972
Bad debt expense	69,613
Deferred income tax expense		5,243,422
Stock-based compensation	1,889,175	2,081,021
Deferred lease liability	(9,308)	(7,015)
Changes in operating assets and liabilities:
Accounts receivable	(157,903)	654,610
Inventories	(2,004,812)	(1,194,747)
Prepaid expenses and other current assets	(252,805)	(92,987)
Deferred income		5,514
Intangible and other assets	83,453
Accounts payable, accrued expenses and other current liabilities	1,641,410	(1,041,513)
Net cash (used in) / provided by operating activities	(2,601,969)	1,002,988
Investing activities
Acquisition of property, plant and equipment	(588,526)	(358,013)
Additional patents	(127,912)	(120,638)
Net cash used in investing activities	(716,438)	(478,651)
Financing activities
Proceeds from exercise of stock options	1,351,172	228,223
Net cash provided by financing activities	1,351,172	228,223
Net (decrease) increase in cash and cash equivalents	(1,967,235)	752,560
Cash and cash equivalents at beginning of period	10,979,455	11,557,071
Cash and cash equivalents at end of period	9,012,220	12,309,631
Cash paid for:
Income taxes	71,787	895
Transfer of inventory to property, plant and equipmment for consignment of product	692,112	1,022,680
Adoption of new accounting standard on deferred taxes		$ 908,875