Organization, Use of Estimates and Basis of Presentation - Narrative (Details) |
3 Months Ended | ||||
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Oct. 15, 2013 |
Jul. 31, 2016
USD ($)
subsidiary
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Jul. 31, 2015
USD ($)
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Apr. 30, 2016
USD ($)
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Apr. 30, 2015
USD ($)
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Organization, Consolidation and Presentation of Financial Statements [Abstract] | |||||
Number of operating subsidiaries | subsidiary | 3 | ||||
Positive working capital | $ 2,000,000 | ||||
Cash and cash equivalents | 4,463,000 | $ 6,760,000 | $ 2,585,000 | $ 9,357,000 | |
Reverse stock split conversion ratio | 0.0833 | ||||
Unrecognized tax benefits | 185,000 | $ 165,000 | |||
Provision for income taxes | $ 14,000 | $ 6,000 |
X | ||||||||||
- Definition Number of Operating Subsidiaries No definition available.
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X | ||||||||||
- Definition Stockholders' Equity, Reverse Stock Split, Conversion Ratio No definition available.
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X | ||||||||||
- Definition Amount of reporting entity working capital (deficit) has reported. No definition available.
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X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- References No definition available.
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X | ||||||||||
- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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