Preliminary Purchase Price and Related Allocations (Detail) (TEGG, USD $) In Thousands, unless otherwise specified	May 01, 2012
Consideration transferred:
Cash paid at closing, net of cash acquired of $160	$ 5,179
Indemnification hold back amount	461
Other hold back amounts	350
Working capital adjustment	(519)
Total cash consideration	5,471
Allocated to:
Goodwill	1,714
Other assets	775
Accrued liabilities and other	(1,418)
Net assets acquired	5,471
Other Identifiable Intangibles
Allocated to:
Intangible assets other than goodwill	2,300
Software technology
Allocated to:
Intangible assets other than goodwill	$ 2,100