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Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
Feb. 28, 2019
Feb. 28, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net Income $ 161,587 $ 368,207
Adjustments to reconcile net income to net cash (used in) provided by operating activities:    
Depreciation and amortization 332,147 399,526
Stock based compensation expense 30,548 41,728
Inventory reserve 66,000 104,601
Unrealized loss on marketable securities 100,184
Deferred tax expense 49,743 (33,558)
(Increase) Decrease in:    
Accounts receivable (623,113) 376,023
Inventories (369,933) (118,000)
Prepaid expenses and other assets (255,599) (12,130)
(Decrease) Increase in:    
Accounts payable and accrued expenses (327,655) 340,739
Customer deposits 805,460 265,196
Income taxes payable (78,349) 70,002
Net Cash (Used In) Provided by Operating Activities (108,980) 1,802,334
CASH FLOW FROM INVESTING ACTIVITIES:    
Purchase of equipment, furnishings and leasehold improvements (547,251) (189,245)
Sale of marketable securities 1,940,010  
Purchase of marketable securities   (2,004,360)
Net Cash Provided By (Used In) Investing Activities 1,392,759 (2,193,605)
CASH FLOW FROM FINANCING ACTIVITIES:    
Proceeds from exercise of options 210
Repayment of long term debt (156,120) (149,698)
Net Cash (Used In) Financing Activities (156,120) (149,488)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS 1,127,659 (540,759)
CASH AND CASH EQUIVALENTS    
Beginning of year 2,016,464 2,557,223
End of year 3,144,123 2,016,464
SUPPLEMENTAL CASH FLOW DISCLOSURE:    
Interest paid 39,977 46,117
Income Taxes Paid $ 28,178 $ 59,494