Consolidated Statements of Income and Comprehensive Income (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	May 25, 2012	May 27, 2011
Consolidated Statements of Income and Comprehensive Income (unaudited) [Abstract]
Net sales	$ 16,070	$ 16,274
Cost of goods sold	9,622	9,776
Gross profit	6,448	6,498
Operating expenses:
Selling and marketing	1,340	1,291
General and administrative	1,883	2,087
Research and development	310	245
Total Operating expenses	3,533	3,623
Operating income	2,915	2,875
Other expenses:
Interest expense, net	214	150
Other (income) expense, net	(3)	108
Total Other expenses	211	258
Income before income taxes	2,704	2,617
Provision for income taxes	1,014	992
Net income	1,690	1,625
Expense (income) attributable to non-controlling interest	5	(16)
Net income attributable to Environmental Tectonics Corporation	1,695	1,609
Foreign currency translation adjustment	156	(217)
Comprehensive income	1,851	1,392
Preferred Stock dividend	(552)	(552)
Income attributable to common and participating shareholders	$ 1,143	$ 1,057
Distributed earnings per share:
Common (in dollars per share)	$ 0	$ 0
Preferred (in dollars per share)	$ 0.05	$ 0.05
Undistributed earnings per share:
Common (in dollars per share)	$ 0.06	$ 0.05
Preferred (in dollars per share)	$ 0.06	$ 0.05
Diluted earnings per share (in dollars per share)	$ 0.06	$ 0.05
Basic weighted average common shares:
Common weighted average number of shares (in shares)	9,136	9,105
Participating preferred shares (in shares)	11,095	11,095
Total basic weighted average common and participating shares	20,231	20,200
Diluted weighted average common shares:
Basic weighted average common and participating shares	20,231	20,200
Dilutive effect of stock warrants and options	150	320
Total diluted weighted average shares	20,381	20,520