Segment Information (Tables) - Segment information (Details) (USD $)	3 Months Ended		6 Months Ended
	Aug. 31, 2012	Aug. 31, 2011	Aug. 31, 2012	Aug. 31, 2011	Feb. 29, 2012
Net Sales	$ 2,391,107	$ 3,149,960	$ 5,230,809	$ 6,139,028
Rental Expense	28,610	23,965	57,630	63,793
Interest Expense	28,678	29,594	57,648	59,367
Net Income (Loss)	59,735	437,526	70,836	676,120
Assets	9,233,196		9,233,196		9,478,273
Debt	2,174,508		2,174,508		2,234,499
Ultrasonic Spraying
Net Sales	2,382,657	3,127,614	5,201,514	6,094,342
Rental Expense	33,935	33,933	67,869	67,872
Interest Expense	972	1,054	2,023	2,086
Net Income (Loss)	73,666	433,749	86,926	684,637
Assets	6,725,311	6,550,462	6,725,311	6,550,462
Debt	2,174,508	228,055	2,174,508	228,055
Rental Real Estate Operations
Net Sales	42,385	56,279	97,164	112,558
Rental Expense	28,610	23,965	57,630	63,793
Interest Expense	27,706	28,540	55,625	57,282
Net Income (Loss)	(13,931)	3,777	(16,090)	(8,517)
Assets	2,507,885	2,536,816	2,507,885	2,536,816
Debt	169,979	2,065,788	169,979	2,065,788
Eliminations
Net Sales	33,935	33,933	67,869	67,872
Rental Expense	(33,935)	(33,933)	(67,869)	(67,872)
Consolidated
Net Sales	2,391,107	3,149,960	5,230,809	6,139,028
Rental Expense	28,610	23,965	57,630	63,793
Interest Expense	28,678	29,594	57,648	59,368
Net Income (Loss)	59,735	437,526	70,836	676,120
Assets	9,233,196	9,087,278	9,233,196	9,087,278
Debt	$ 2,004,529	$ 2,293,843	$ 2,004,529	$ 2,293,843