Intangible Assets

6 Months Ended

Aug. 31, 2011

Note 6. — Intangible Assets

Intangible assets consist primarily of the unamortized value of purchased patents, customer lists, non-compete agreements and other intangible assets. Intangible assets are amortized over the period of their expected lives, generally ranging from 5 to 15 years. Amortization expense related to intangible assets was approximately $157 thousand and $177 thousand for the six months ended August 31, 2011 and 2010, respectively.

The cost and accumulated amortization of intangible assets were as follows (in thousands):


	August 31, 2011				February 28, 2011
			Accumulated				Accumulated
	Cost		Amortization		Cost		Amortization
Customer lists	$	3,611	$	2,642	$	3,611	$	2,583
Non-compete agreements		1,245		1,245		1,245		1,245
Patents		777		675		777		627
Other intangibles		649		373		649		323

	$	6,282	$	4,935	$	6,282	$	4,778