Income Taxes - Income tax expense differs from expected tax expense (Details) - USD ($) |
12 Months Ended | |
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Apr. 30, 2016 |
Apr. 30, 2015 |
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| Income Tax Disclosure [Abstract] | ||
| Federal income tax at statutory rates | $ (479,000) | $ (1,301,000) |
| State income taxes (net of federal income tax benefit) | 81,000 | (28,000) |
| Impact of change in state rate | (69,000) | 0 |
| Other | (46,000) | 257,000 |
| Total income tax expense (benefit) before provision for valuation allowance | (513,000) | (1,072,000) |
| Changes in valuation allowance | 326,000 | 1,075,000 |
| Total income tax expense | $ (187,000) | $ 3,000 |
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- Definition Reconciliation of income tax expense before valuation allowance. No definition available.
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- Definition Amount of current and deferred federal income tax expense (benefit) attributable to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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