CONDENSED STATEMENTS OF EARNINGS - USD ($)	3 Months Ended
	May 31, 2020	May 31, 2019
NET REVENUES	$ 38,291,700	$ 27,587,400
COST OF GOODS SOLD	11,395,500	9,056,200
Gross margin	26,896,200	18,531,200
OPERATING EXPENSES
Operating and selling	6,340,200	4,383,900
Sales commissions	13,600,500	8,533,000
General and administrative	4,536,000	3,938,200
Total operating expenses	24,476,700	16,855,100
INTEREST EXPENSE	182,200	232,000
OTHER INCOME	(406,600)	(402,400)
EARNINGS BEFORE INCOME TAXES	2,643,900	1,846,500
INCOME TAXES	712,800	482,900
NET EARNINGS	$ 1,931,100	$ 1,363,600
BASIC AND DILUTED EARNINGS PER SHARE
Basic (in Dollars per share)	$ 0.23	$ 0.17
Diluted (in Dollars per share)	$ 0.23	$ 0.17
WEIGHTED AVERAGE NUMBER OF COMMON AND EQUIVALENT SHARES OUTSTANDING
Basic (in Shares)	8,352,424	8,184,272
Diluted (in Shares)	8,352,424	8,191,062
Dividends per share (in Dollars per share)	$ 0.06	$ 0.05
Gross Sales [Member]
REVENUES	$ 46,896,900	$ 36,473,700
Discounts and Allowances [Member]
WEIGHTED AVERAGE NUMBER OF COMMON AND EQUIVALENT SHARES OUTSTANDING
Less discounts and allowances	(12,895,900)	(11,331,400)
Transportation Revenue [Member]
REVENUES	$ 4,290,700	$ 2,445,100