CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)	6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (1,083,814)	$ (212,661)
Adjustments to Reconcile Net Loss to Net Cash Used In Operating Activities -
Depreciation and amortization	107,680	70,728
Stock-based compensation expense	510,522	228,225
Changes in Operating Assets and Liabilities, net of effects of business acquisition -
Accounts receivable, net	339,671	(109,430)
Inventories, net	(161,987)	252,178
Prepaid expenses	(66,093)	(12,912)
Accounts payable	(167,139)	(68,880)
Customer advances	(139,292)	(265,182)
Accrued compensation and other	(54,711)	(99,506)
Net Cash Used In Operating Activities	(715,163)	(217,440)
CASH FLOWS FROM INVESTING ACTIVITIES:
Additional patent costs	(8,853)	(23,239)
Purchases of property and equipment	(29,239)	(35,794)
Acquisition of business	(255,063)	0
Net Cash Used In Investing Activities	(293,155)	(59,033)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payment of capital lease obligations	(18,879)	(41,961)
Payments of long-term debt	(61,905)	0
Payment of debt issuance costs	(26,000)	0
Gross proceeds from private placement of common stock	1,500,000	0
Gross proceeds from exercise of stock options	16,650	0
Net Cash Provided By (Used in) Financing Activities	1,409,866	(41,961)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	401,548	(318,434)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	861,650	1,134,697
CASH AND CASH EQUIVALENTS, END OF PERIOD	1,263,198	816,263
SUPPLEMENTAL DISCLOSURE OF NON-CASH FINANCING ACTIVITIES:
Offering costs included in accrued compensation and other	10,000	0
Issuance of common stock for services	20,000	0
Acquisition of business financed with long-term debt	$ 2,600,000	$ 0