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Equity Investments with Carrying Value (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Schedule of Cost-method Investments [Line Items] |  |
Long-term investments | $ 120 | $ 133
Cashido Corp. (Cashido) |  |
Schedule of Cost-method Investments [Line Items] |  |
Long-term investments | $ 91 | $ 104
Equity Investments Percentage of Ownership | 2.10% | 2.10%
Vastview Technology, Corp. (Vastview) |  |
Schedule of Cost-method Investments [Line Items] |  |
Long-term investments | $ 29 | $ 29
Equity Investments Percentage of Ownership | 2.90% | 2.90%

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- Definition The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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