Consolidated Statements of Cash Flows (unaudited) (USD $)	9 Months Ended
	Nov. 30, 2011	Nov. 30, 2010
Cash Flows From Operating activities
Net income	$ 2,556,180	$ 2,748,723
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	553,295	504,082
Provision for loss on accounts and notes receivable	237,000	135,000
Provision for obsolete inventory	45,000	45,000
Loss on sale or acquisition of property and equipment	26,598	481
Expense recorded for stock compensation	356,490	315,972
Deferred income taxes	(165,338)	(64,840)
Changes in operating assets and liabilities:
Accounts receivable	87,163	(378,781)
Inventories	(241,502)	(775,568)
Other current assets	(99,138)	(237,058)
Accounts payable	(11,119)	439,305
Deferred income	(77,910)	(15,528)
Accrued liabilities	100,931	(331,807)
Net cash provided by operating activities	3,367,650	2,384,981
Cash Flows From Investing Activities
Addition to notes receivable	(101,810)	(549,259)
Proceeds received on notes receivable	165,929	111,246
Proceeds from sale or distribution of assets	52,800	18,602
Purchases of property and equipment	(1,861,708)	(532,403)
Increase in other assets	(32,895)	(8,097)
Net cash used in investing activities	(1,777,684)	(959,911)
Cash Flows From Financing Activities
Issuance of common stock	36,715
Tax benefit of stock awards	8,285
Dividends paid	(1,827,959)	(1,812,137)
Net cash used in financing activities	(1,782,959)	(1,812,137)
Net Increase (Decrease) in Cash and Cash Equivalents	(192,993)	(387,067)
Cash and Cash Equivalents, Beginning of Period	3,344,490	3,743,092
Cash and Cash Equivalents, End of Period	$ 3,151,497	$ 3,356,025