CONDENSED STATEMENTS OF CASH FLOWS - USD ($)
 9 Months Ended
Nov. 30, 2021
Nov. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES    
Net earnings $ 7,982,900 $ 10,455,700
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:    
Depreciation 1,518,700 1,207,900
Deferred income taxes (226,700) (809,800)
Provision for doubtful accounts 91,800 115,800
Provision for inventory valuation allowance 180,000 166,200
Share-based compensation expense 784,900 677,000
Changes in assets and liabilities:    
Accounts receivable (1,476,700) (1,264,200)
Inventories, net (18,817,000) (17,130,200)
Prepaid expenses and other assets (159,000) (239,200)
Accounts payable 4,451,400 35,498,700
Accrued salaries and commissions and other liabilities (841,100) 8,598,200
Deferred revenues (1,320,200) 2,128,400
Income taxes payable 453,900 213,300
Total adjustments (15,360,000) 29,162,100
Net cash provided by (used in) operating activities (7,377,100) 39,617,800
CASH FLOWS FROM INVESTING ACTIVITIES    
Purchases of property, plant and equipment (3,387,100) (2,040,000)
Net cash used in investing activities (3,387,100) (2,040,000)
CASH FLOWS FROM FINANCING ACTIVITIES    
Payments on term debt (751,100) (9,144,300)
Proceeds from term debt 15,244,700 1,447,400
Sales of treasury stock 154,400 109,300
Purchases of treasury stock 0 (75,500)
Net payments on line of credit (2,225,900) 0
Dividends paid (2,563,400) (1,419,800)
Net cash provided by (used in) financing activities 9,858,700 (9,082,900)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (905,500) 28,494,900
CASH AND CASH EQUIVALENTS - BEGINNING OF PERIOD 1,812,200 2,999,400
CASH AND CASH EQUIVALENTS - END OF PERIOD 906,700 31,494,300
SUPPLEMENTAL DISCLOSURE OF CASH FLOWS INFORMATION    
Cash paid for interest 606,300 463,600
Cash paid for income taxes $ 2,708,000 $ 3,789,500