Consolidated Balance Sheets - USD ($)	Mar. 31, 2021	Mar. 31, 2020
Current assets:
Cash	$ 3,485,275	$ 3,126,195
Accounts receivable, net of allowance for doubtful accounts of $7,500 and $7,500, respectively	1,933,321	1,411,644
Inventories, net	3,437,989	3,092,679
Restricted cash to support appeal bond	2,011,050	2,008,544
Prepaid expenses and other current assets	263,067	447,195
Total current assets	11,130,702	10,086,257
Equipment and leasehold improvements, net	200,769	263,750
Operating lease right-of-use assets	1,922,805	306,740
Deferred tax asset, net	2,675,040	2,648,013
Other assets	35,110	35,109
Total assets	15,964,426	13,339,869
Current liabilities:
Line of credit	0	680,000
Finance lease obligations – current portion	0	49
Operating lease liabilities – current portion	201,883	214,793
Accounts payable	906,149	739,810
Deferred revenues – current portion	150,709	145,168
Accrued expenses - vacation pay, payroll and payroll withholdings	457,232	512,732
Accrued legal damages	5,889,023	5,657,549
Accrued expenses – other	365,975	295,213
Total current liabilities	7,970,971	8,245,314
Operating lease liabilities – long-term	1,720,921	91,947
Long Term Debt-PPP	722,577
Deferred revenues – long-term	332,428	327,132
Total liabilities	10,746,897	8,664,393
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	7,318,620	7,616,624
Accumulated deficit	(7,270,042)	(7,870,099)
Total stockholders’ equity	5,217,529	4,675,476
Total liabilities and stockholders’ equity	15,964,426	13,339,869
Series A Preferred Stock [Member]
Stockholders’ equity
Preferred stock	3,695,998	3,515,998
Series B Preferred Stock [Member]
Stockholders’ equity
Preferred stock	$ 1,147,367	$ 1,087,367