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Derivative Liability - Additional Information (Detail) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2014 | Mar. 31, 2017 | Mar. 31, 2016 | Dec. 31, 2015 | Mar. 31, 2015 | Mar. 31, 2012 | Mar. 31, 2011
Derivative [Line Items] |  |  |  |  |  |  |
Warrants issued |  |  |  |  |  | 22,847,182 | 22,847,182
Warrants maturity term | 5 years |  |  |  |  | 5 years | 5 years
Estimated fair value of the outstanding warrant liabilities |  | $ 0 | $ 4,000 |  |  |  |
Change in fair value of warrant liabilities |  | $ (4,000) | $ 17,000 | $ (196,000) | $ (196,000) |  |
Exercised derivative liabilities |  | 0 | 43,796 |  |  |  |
Warrants expired |  | 3,350 |  |  |  |  |
Warrants [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Estimated fair value of the outstanding warrant liabilities |  | $ 0 | $ 4,000 |  |  |  |

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- Definition Class of warrant or right life. + References No definition available. + Details
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- Definition Number of warrant exercised during period recorded as derivative liability. + References No definition available. + Details
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- Definition Number of warrants expired. + References No definition available. + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Liabilities -URI http://asc.fasb.org/extlink&oid=6509677 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13495-108611 + Details
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- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section 25 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6939902&loc=d3e20148-110875 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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