CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash Flows from Operating Activities:
Net Income (Loss)	$ 793	$ (86,110)
Adjustments to reconcile net loss to net cash (used in) provided from operating activities -
Depreciation and amortization	35,086	22,920
Stock-based compensation expense	71,146	76,505
Non-cash consulting expense	0	45,000
Changes in operating assets and liabilities
Accounts receivable, net	(103,564)	519,342
Inventories, net	58,854	(337,248)
Prepaid expenses	21,692	(770)
Accounts payable	(43,202)	(138,075)
Customer advances	(210,394)	63,431
Accrued compensation and other	(3,047)	(163,648)
Net cash (used in) provided by operating activities	(172,636)	1,347
Cash Flows from Investing Activities:
Cash paid for business acquisition	0	(1,443,341)
Purchases of fixed assets	(30,951)	(21,885)
Additional patent costs	(9,658)	(6,754)
Net cash used in investing activities	(40,609)	(1,471,980)
Cash Flows from Financing Activities:
Payment of capital lease obligation	(20,942)	(2,333)
Gross proceeds from exercise of stock options	0	8,675
Gross proceeds from private placement of common stock	0	25,000
Net cash (used in) provided by financing activities	(20,942)	31,342
Net decrease in cash and cash equivalents	(234,187)	(1,439,291)
Cash and cash equivalents, beginning of period	1,134,697	2,288,426
Cash and cash equivalents, end of period	900,510	849,135
Supplemental disclosure of non-cash financing activities:
Offering costs included in accrued compensation and other	$ 22,250	$ 12,250