Inventories

6 Months Ended

Jun. 30, 2023

Notes

Inventories

6.  Inventories are stated at the lower of cost or net realizable value, cost being determined by the first-in, first-out method.

 A summary of inventories is as follows:

	June 30, 2023	December 31, 2022
Raw material	$       4,466,826	$       4,460,071
Work-in-process	2,939,353	2,747,427
Finished goods	2,638,064	2,534,732
Inventories, gross	10,044,243	9,742,230
Valuation reserves	(621,000)	(621,000)
Inventories, net	$       9,423,243	$       9,121,230