CONDENSED STATEMENTS OF EARNINGS (UNAUDITED) - USD ($)	3 Months Ended		9 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
GROSS SALES	$ 41,894,600	$ 34,397,300	$ 100,989,500	$ 91,657,200
Less discounts and allowances	(6,762,300)	(6,948,000)	(19,929,300)	(20,581,900)
Transportation revenue	3,775,700	3,248,300	8,959,900	8,299,500
NET REVENUES	38,908,000	30,697,600	90,020,100	79,374,800
COST OF GOODS SOLD	10,494,800	8,328,100	24,579,200	22,500,300
Gross margin	28,413,200	22,369,500	65,440,900	56,874,500
OPERATING EXPENSES:
Operating and selling	7,837,300	6,520,300	17,549,900	16,790,900
Sales commissions	12,510,400	9,521,000	28,759,300	24,802,200
General and administrative	4,735,200	4,525,900	12,359,600	12,237,600
Total operating expenses	25,082,900	20,567,200	58,668,800	53,830,700
OTHER INCOME (EXPENSE):
Interest expense	(287,600)	(265,000)	(863,800)	(730,000)
Other income	390,100	502,800	1,189,400	1,251,600
Total other income	102,500	237,800	325,600	521,600
EARNINGS BEFORE INCOME TAXES	3,432,800	2,040,100	7,097,700	3,565,400
INCOME TAXES	1,304,400	765,900	2,707,100	1,352,500
NET EARNINGS	$ 2,128,400	$ 1,274,200	$ 4,390,600	$ 2,212,900
BASIC AND DILUTED EARNINGS PER SHARE:
Basic (in Dollars per share)	$ 0.52	$ 0.31	$ 1.07	$ 0.54
Diluted (in Dollars per share)	0.52	0.31	1.07	0.54
DIVIDENDS PER SHARE (in Dollars per share)	$ 0.00	$ 0.09	$ 0.00	$ 0.27
WEIGHTED AVERAGE NUMBER OF COMMON AND EQUIVALENT SHARES OUTSTANDING:
Basic (in Shares)	4,087,268	4,079,916	4,087,686	4,074,355
Diluted (in Shares)	4,090,011	4,084,863	4,090,053	4,079,833