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Related Party Transactions - Additional Information (Detail) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2016 | Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Related Party Transaction [Line Items] |  |  |  |
Change in fair value of derivative financial instruments |  | $ 2,525,000 | $ (516,000) |
Non-employee Stock Options |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Change in fair value of derivative financial instruments |  | 200,000 | (48,000) |
Minimum | A&B (HK) Company Ltd. |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Ownership percentage of common stock shares outstanding |  |  |  | 5.00%
Directors |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Consulting fees paid |  | $ 3,000 | 18,000 |
Montel Media, Inc. | Minimum |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Beneficially owns common stock percentage |  | 5.00% |  |
Montel Media, Inc. | Consulting Agreement |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Consulting fees paid |  | $ 45,000 | 45,000 |
Consulting monthly fee | $ 15,000 |  |  |
Clinvue LLC |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Consulting fees paid |  | $ 100,000 | $ 0 |
CEO | Minimum |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Ownership percentage of common stock shares outstanding |  |  |  | 5.00%
CFO/CEO | Minimum |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Ownership percentage of common stock shares outstanding |  |  |  | 5.00%
Director 1 | Minimum |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Ownership percentage of common stock shares outstanding |  |  |  | 5.00%
Director 2 | Minimum |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Ownership percentage of common stock shares outstanding |  |  |  | 5.00%

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- Definition A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07.2(a),(b),(c),(d)) -URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 225 -Section 45 -Paragraph 3 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=6488370&loc=d3e13550-115849 + Details
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