| 2. Liquidity and Financial Condition (Details Narrative) - USD ($) | 3 Months Ended | ||
|---|---|---|---|
| Jun. 30, 2015 | Jun. 30, 2014 | Mar. 31, 2015 | |
| Net loss | $ (2,340,000) | $ (70,000) | |
| Loss from operations | (2,311,000) | $ (1,514,000) | |
| Accumulated deficit | (144,553,000) | $ (142,213,000) | |
| Working capital | 10,534,000 | $ 7,066,000 | |
| Ruthigen | |||
| Stock issued to investors, net proceeds after offering costs | $ 4,537,500 | ||
| Stock issued to investors, shares | 1,650,000 | ||
| Finders fee | $ 165,000 | ||
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- Definition Working capital. No definition available. 
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available. 
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Cash received on stock transaction after deduction of issuance costs. No definition available. 
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- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. No definition available. 
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- Details 
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