Segment Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016	Feb. 28, 2017
Net Sales	$ 2,674,496	$ 2,310,451	$ 5,186,630	$ 4,550,663
Rental Expense	35,271	38,454	74,369	81,571
Interest Expense	11,818	13,367	24,031	27,113
Net Income	54,645	(89,673)	70,514	(33,882)
Assets	11,564,852		11,564,852		$ 10,735,936
Debt	1,102,089		1,102,089		$ 1,176,348
Ultrasonic Spraying
Net Sales	2,653,695	2,286,153	5,154,430	4,502,365
Rental Expense	49,074	49,074	98,149	98,149
Rental Operations Expense
Depreciation Expense	81,357	103,866	165,463	197,744
Interest Expense
Net Income	80,935	(62,150)	136,714	26,503
Assets	9,185,671	8,156,775	9,185,671	8,156,775
Rental Real Estate Operations
Net Sales	69,875	73,372	130,349	146,447
Rental Expense
Rental Operations Expense	17,660	20,408	39,056	45,331
Depreciation Expense	17,611	18,046	35,313	36,240
Interest Expense	11,818	13,367	24,031	27,113
Net Income	(26,290)	(27,523)	(66,200)	(60,385)
Assets	2,379,181	2,424,489	2,379,181	2,424,489
Debt	1,102,089	1,248,650	1,102,089	1,248,650
Eliminations
Net Sales	49,074	49,074	98,149	98,149
Rental Expense	(49,074)	(49,074)	(98,149)	(98,149)
Consolidated
Net Sales	2,674,496	2,310,451	5,186,630	4,550,663
Rental Expense
Rental Operations Expense	17,660	20,408	39,056	45,331
Depreciation Expense	98,968	121,912	200,776	233,984
Interest Expense	11,818	13,367	24,031	27,113
Net Income	54,645	(89,673)	70,514	(33,882)
Assets	11,564,852	10,581,264	11,564,852	10,581,264
Debt	$ 1,102,089	$ 1,248,650	$ 1,102,089	$ 1,248,650