CONDENSED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	May 31, 2021	May 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 3,438,100	$ 1,931,100
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation	432,000	409,900
Deferred income taxes	237,500	91,200
Provision for doubtful accounts	37,600	67,800
Provision for inventory valuation allowance	60,000	80,000
Share-based compensation expense	261,600	169,000
Changes in assets and liabilities:
Accounts receivable	(665,100)	348,900
Inventories, net	(4,928,000)	3,080,800
Prepaid expenses and other assets	(235,400)	29,100
Accounts payable	(577,400)	1,385,200
Accrued salaries and commissions and other liabilities	(3,617,900)	2,373,300
Deferred revenues	(287,100)	2,026,800
Income taxes payable	967,700	602,100
Total adjustments	(8,314,500)	10,664,100
Net cash provided by (used in) operating activities	(4,876,400)	12,595,200
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment	(1,617,200)	(143,800)
Net cash used in investing activities	(1,617,200)	(143,800)
CASH FLOWS FROM FINANCING ACTIVITIES
Payments on term debt	(142,300)	(1,710,800)
Proceeds from term debt	3,896,200	1,447,400
Sales of treasury stock	32,000	71,000
Purchases of treasury stock	0	(75,500)
Net borrowings under line of credit	3,487,200	0
Dividends paid	(835,100)	(417,400)
Net cash provided by (used in) financing activities	6,438,000	(685,300)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(55,600)	11,766,100
CASH AND CASH EQUIVALENTS - BEGINNING OF PERIOD	1,812,200	2,999,400
CASH AND CASH EQUIVALENTS - END OF PERIOD	1,756,600	14,765,500
SUPPLEMENTAL DISCLOSURE OF CASH FLOWS INFORMATION
Cash paid for interest	152,400	184,600
Cash paid for income taxes	$ 17,200	$ 19,500