SEGMENT INFORMATION AND GEOGRAPHIC DATA, Reconciliation of Cost of Goods Sold (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Cost of Goods Sold [Abstract]
Cost of goods sold	$ 6,167,708	$ 5,530,514	$ 10,363,763	$ 9,407,138
Inventory write-off			105,000	149,000
Product Line [Member]
Reconciliation of Cost of Goods Sold [Abstract]
Cost of goods sold	5,807,749	5,045,768	9,305,960	8,548,130
Segment Reconciling Item [Member]
Reconciliation of Cost of Goods Sold [Abstract]
Non-capitalized manufacturing and production control expenses	395,237	427,643	724,641	817,519
Freight out	316,542	141,233	491,881	272,352
Inventory write-off	25,000	126,000	105,000	149,000
Other inventory adjustments	$ (376,820)	$ (210,130)	$ (263,719)	$ (379,863)