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Description of Business and Significant Accounting Policies - Income Taxes (Details Narrative) (USD $)
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9 Months Ended |
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Jan. 31, 2015
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| Operating Loss Carryforwards [Line Items] | |
| Federal net operationg loss (NOL) carry-forwards | 25,600,000us-gaap_OperatingLossCarryforwards |
| State net operationg loss (NOL) carry-forwards | 24,000,000DRAM_StateNetOperatingLossCarryforwards |
| Minimum | |
| Operating Loss Carryforwards [Line Items] | |
| Federal NOL expiration dates | Jan. 01, 2023 |
| State NOL expiration dates | Jan. 01, 2016 |
| Maximum | |
| Operating Loss Carryforwards [Line Items] | |
| Federal NOL expiration dates | Dec. 31, 2034 |
| State NOL expiration dates | Dec. 31, 2034 |
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- Definition
State net operating loss carryforwards No definition available.
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- Definition
Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format. No definition available.
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- Definition
Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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