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Segment Information (Tables) - Segment information (Details) (USD $)	12 Months Ended
	Feb. 28, 2013	Feb. 29, 2012
Net Sales	$ 9,542,354	$ 12,052,893
Rental Expense	118,559	128,582
Interest Expense	113,931	118,115
Net Income (Loss)	132,251	1,432,293
Assets	9,066,444	9,478,273
Debt	2,113,235	2,234,499
Ultrasonic Spraying
Net Sales	9,490,564	11,966,516
Rental Expense	135,741	135,739
Interest Expense	3,546	4,368
Net Income (Loss)	173,664	1,452,506
Assets	6,574,429	6,862,717
Debt	140,619	198,920
Rental Real Estate Operations
Net Sales	187,531	222,116
Rental Expense	118,559	128,582
Interest Expense	110,385	113,747
Net Income (Loss)	(41,413)	(20,213)
Assets	2,492,015	2,529,389
Debt	1,972,616	2,035,579
Eliminations
Net Sales	135,741	135,739
Rental Expense	(135,741)	(135,739)
Consolidated
Net Sales	9,542,354	12,052,893
Rental Expense	118,559	128,582
Interest Expense	113,931	118,115
Net Income (Loss)	132,251	1,432,293
Assets	9,066,444	9,392,106
Debt	$ 2,113,235	$ 2,234,499

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