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Discontinued Operations - Summary of Assets and Liabilities of Discontinued Operations (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract] |  |
Income taxes receivable | $ 6 | $ 4
Assets of discontinued operations | 6 | 4
Accrued professional fees | 10 | 0
Liabilities of discontinued operations | $ 10 | $ 0

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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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