Statements of Operation and Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
Statements Of Income and Comprehensive Income [Abstract]
Net sales	$ 8,395	$ 9,757
Cost of sales	6,621	7,225
Gross profit	1,774	2,532
Selling, general and administrative expenses	1,969	1,610
Operating (loss) income	(195)	922
Other income (expenses):
Interest income	$ 30	16
Other, net (Note 12)		8
Income (Loss) before provision for income taxes	$ (165)	946
Provision for income taxes	0	19
Net (loss) income	(165)	927
Other comprehensive (loss) income
Unrealized gain on investments	2	1
Total comprehensive (loss) income	$ (163)	$ 928
(Loss) income per share from operating (loss) income-Basic	$ (0.07)	$ 0.42
(Loss) income per share from operating (loss) income-Diluted	(0.07)	0.38
Net (loss) income per share-Basic	(0.07)	0.42
Net (loss) income per share-Diluted	$ (0.07)	$ 0.38
Weighted average shares outstanding-Basic	2,245,575	2,183,876
Weighted average shares outstanding-Diluted	2,245,575	2,408,635