CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($)	Aug. 31, 2022	May 31, 2022
Current Assets:
Cash and cash equivalents	$ 6,075,037	$ 5,916,983
Accounts receivable, less allowance for doubtful accounts of $383,106 and $153,231 as of August 31, 2022 and May 31, 2022, respectively	932,273	773,818
Inventories, net of inventory reserves of $981,814 and $845,549 as of August 31, 2022 and May 31, 2022, respectively	1,921,734	2,416,447
Prepaid expenses and other	238,762	320,283
Total current assets	9,167,806	9,427,531
Property and equipment, net of accumulated depreciation and amortization of $1,325,561 and $1,305,360 as of August 31, 2022 and May 31, 2022, respectively	227,908	214,487
Right of use assets, net of accumulated amortization of $791,859 and $724,802 as of August 31, 2022 and May 31, 2022, respectively	1,234,777	1,301,834
Investments	165,324	165,324
Intangible assets, net of accumulated amortization of $21,271 and $18,994 as of August 31, 2022 and May 31, 2022, respectively	160,750	169,516
Other assets	93,509	95,588
Total Assets	11,050,074	11,374,280
Current Liabilities:
Accounts payable and accrued expenses	671,240	972,372
Accrued compensation	591,948	646,944
Advance from customers	150,523	50,670
Lease liability, current portion	343,889	341,296
Total current liabilities	1,757,600	2,011,282
Lease liability, net of current portion	970,890	1,038,284
Total Liabilities	2,728,490	3,049,566
Commitments and contingencies (Notes 5 and 6)
Shareholders' Equity:
Common stock, $0.08 par value, 25,000,000 shares authorized, 13,406,901 and 12,867,924 issued and outstanding at August 31, 2022 and May 31, 2022, respectively	1,072,550	1,029,432
Additional paid-in-capital	44,484,752	42,446,597
Accumulated other comprehensive loss	(86,463)	(73,936)
Accumulated deficit	(37,149,255)	(35,077,379)
Total Shareholders' Equity	8,321,584	8,324,714
Total Liabilities and Shareholders' Equity	$ 11,050,074	$ 11,374,280