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Goodwill and Other Intangible Assets (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2011
Goodwill and Other Intangible Assets (Textual) [Abstract]
Estimated useful life of asset	6 years 2 months 12 days	7 years
Goodwill and Other Intangible Assets (Additional Textual) [Abstract]
Aggregate amortization expense	$ 3,278	$ 2,431	$ 2,399
Maximum [Member]
Goodwill and Other Intangible Assets (Textual) [Abstract]
Estimated useful life of asset	10 years
Minimum [Member]
Goodwill and Other Intangible Assets (Textual) [Abstract]
Estimated useful life of asset	1 year

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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