Inventories

3 Months Ended

Mar. 31, 2024

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 at the dates indicated is as follows:

	March 31, 2024	December 31, 2023
Raw material	$       2,432,691	$       2,878,869
Work-in-process	2,463,760	2,374,795
Finished goods	2,390,224	2,614,989
Inventories, gross	7,286,675	7,868,653
Valuation reserves	(540,000)	(541,000)
Inventories, net	$       6,746,675	$       7,327,653