CONDENSED STATEMENTS OF EARNINGS - USD ($)	3 Months Ended		9 Months Ended
	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2019	Nov. 30, 2018
NET REVENUES	$ 40,824,600	$ 40,482,600	$ 92,850,000	$ 95,185,900
COST OF GOODS SOLD	13,279,900	13,141,600	30,382,500	31,274,000
Gross margin	27,544,700	27,341,000	62,467,500	63,911,900
OPERATING EXPENSES
Operating and selling	6,513,500	6,540,600	15,089,900	14,554,400
Sales commissions	13,008,600	12,689,200	28,804,700	29,375,300
General and administrative	4,373,500	4,476,000	12,029,300	12,106,900
Total operating expenses	23,895,600	23,705,800	55,923,900	56,036,600
INTEREST EXPENSE	216,500	228,600	691,000	712,000
OTHER INCOME	(403,100)	(397,600)	(1,196,300)	(1,172,300)
EARNINGS BEFORE INCOME TAXES	3,835,700	3,804,200	7,048,900	8,335,600
INCOME TAXES	1,099,900	988,600	1,941,900	2,212,700
NET EARNINGS	$ 2,735,800	$ 2,815,600	$ 5,107,000	$ 6,122,900
BASIC AND DILUTED EARNINGS PER SHARE
Basic (in Dollars per share)	$ 0.33	$ 0.34	$ 0.62	$ 0.75
Diluted (in Dollars per share)	$ 0.33	$ 0.34	$ 0.61	$ 0.75
WEIGHTED AVERAGE NUMBER OF COMMON AND EQUIVALENT SHARES OUTSTANDING
Basic (in Shares)	8,406,709	8,194,072	8,301,209	8,185,561
Diluted (in Shares)	8,412,638	8,201,776	8,307,496	8,193,206
Dividends per share (in Dollars per share)	$ 0.05	$ 0.10	$ 0.15	$ 0.15
Gross Sales [Member]
REVENUES	$ 53,619,900	$ 53,486,000	$ 122,635,300	$ 125,574,400
Discounts and Allowances [Member]
WEIGHTED AVERAGE NUMBER OF COMMON AND EQUIVALENT SHARES OUTSTANDING
Less discounts and allowances	(16,406,500)	(16,572,600)	(37,978,900)	(38,918,700)
Transportation Revenue [Member]
REVENUES	$ 3,611,200	$ 3,569,200	$ 8,193,600	$ 8,530,200