Notes to Condensed Consolidated Financial Statements (Tables)

3 Months Ended

Nov. 30, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Inventory

	November 30, 2022		May 31, 2022
Raw materials	$	575,415	$	488,393
Work-in-process		4,900,432		5,166,271
Finished goods		220,199		300,271
		5,696,046		5,954,935
Less allowance for obsolescence		100,000		100,000
	$	5,596,046	$	5,854,935

Other accrued expenses table

	November 30, 2022		May 31, 2022
Customer deposits	$	954,262	$	1,347,709
Personnel costs		1,579,679		1,587,271
Other		553,674		479,334
Other current liabilities	$	3,087,615	$	3,414,314