Consolidated Balance Sheets - USD ($)	Mar. 31, 2022	Mar. 31, 2021
Current assets:
Cash	$ 4,949,690	$ 3,485,275
Accounts receivable, net of allowance for doubtful accounts of $7,425 and $7,500, respectively	1,049,040	1,933,321
Inventories, net	2,820,497	3,437,989
Restricted cash to support appeal bond	2,011,050	2,011,050
Prepaid expenses and other current assets	244,040	263,067
Total current assets	11,074,317	11,130,702
Equipment and leasehold improvements, net	115,338	200,769
Operating lease right-of-use assets	1,720,921	1,922,805
Deferred tax asset, net	2,499,587	2,675,040
Other assets	35,109	35,110
Total assets	15,445,272	15,964,426
Current liabilities:
Operating lease liabilities – current portion	194,370	201,883
Accounts payable	406,489	906,149
Deferred revenues – current portion	119,835	150,709
Accrued expenses - vacation pay, payroll and payroll withholdings	410,538	457,232
Accrued legal damages	6,097,273	5,889,023
Accrued expenses – other	174,145	365,975
Total current liabilities	7,402,650	7,970,971
Operating lease liabilities – long-term	1,526,551	1,720,921
Long term debt-PPP	0	722,577
Deferred revenues – long-term	289,071	332,428
Total liabilities	9,218,272	10,746,897
Commitments and contingencies
Stockholders’ equity
Preferred stock
Common stock, 7,000,000 shares authorized, par value $.10 per share, 3,255,887 and 3,255,887 shares issued and outstanding, respectively	325,586	325,586
Additional paid-in capital	7,018,353	7,318,620
Accumulated deficit	(5,960,304)	(7,270,042)
Total stockholders’ equity	6,227,000	5,217,529
Total liabilities and stockholders’ equity	15,445,272	15,964,426
Series A Preferred Stock [Member]
Stockholders’ equity
Preferred stock	3,695,998	3,695,998
Series B Preferred Stock [Member]
Stockholders’ equity
Preferred stock	$ 1,147,367	$ 1,147,367