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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 9 Months Ended
Nov. 30, 2021
Nov. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net Income $ 1,986,745 $ 666,169
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 333,729 350,043
Stock based compensation expense 92,680 26,973
Inventory reserve (3,919) 54,000
Paycheck Protection Program Loan Forgiveness (1,005,372)
Deferred tax expense 23,718 (89,304)
(Decrease) Increase in:    
Accounts receivable 194,342 (744,282)
Inventories (184,738) (119,211)
Prepaid expenses and other current assets 11,460 27,071
Accounts payable and accrued expenses (431,934) 193,317
Customer deposits 729,130 133,423
Income taxes payable 66,400 214,725
Net Cash Provided by Operating Activities 1,812,241 712,924
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchase of equipment, furnishings and leasehold improvements (284,798) (327,180)
Capital expenditure grant proceeds 100,000
Sale of marketable securities 1,213,508 993,724
Net Cash Provided by Investing Activities 928,710 766,544
CASH FLOWS FROM FINANCING ACTIVITIES:    
Proceeds from exercise of stock options 8,775
Proceeds from note payable 1,001,640
Repayment of long term debt (126,650)
Net Cash Provided by Financing Activities 8,775 874,990
NET INCREASE IN CASH AND CASH EQUIVALENTS 2,749,726 2,354,458
CASH AND CASH EQUIVALENTS    
Beginning of period 4,084,078 3,659,551
End of period 6,833,804 6,014,009
SUPPLEMENTAL CASH FLOW DISCLOSURE:    
Interest paid 20,573
Income Taxes Paid $ 224,002 $ 74,004