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Assets and Liabilities of Discontinued Operations (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Assets:    
Cash and cash equivalents   $ 16
Accounts receivable, net   787
Inventories 94 574
Other current assets 2 27
Property and equipment   13
Goodwill   1,310
Total assets of discontinued operations 96 2,727
Liabilities:    
Accounts payable   418
Deferred revenue   966
Accrued expenses and other liabilities   246
Total liabilities of discontinued operations   $ 1,630