Property and Equipment - Additional Information (Detail) - USD ($) |
1 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Property, Plant and Equipment [Line Items] | ||||
| Depreciation | $ 400,000 | $ 26,000 | $ 23,000 | |
| National Holdings Corporation [Member] | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Depreciation | $ 36,000 | |||
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Details
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