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Description of Business and Significant Accounting Policies - Common Stock Repurchases (Details Narrative) (USD $)
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12 Months Ended | 3 Months Ended | |||
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Apr. 30, 2013
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Jul. 31, 2012
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Jan. 31, 2015
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Apr. 10, 2012
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Dec. 04, 2002
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| Equity, Class of Treasury Stock [Line Items] | |||||
| Treasury shares canceled | 22,944us-gaap_TreasuryStockSharesRetired | ||||
| Common Stock Repurchase Plan | |||||
| Equity, Class of Treasury Stock [Line Items] | |||||
| Number of shares authorized to repurchase |
138,000us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased / us-gaap_ShareRepurchaseProgramAxis = DRAM_StockRepurchaseMember |
83,333us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased / us-gaap_ShareRepurchaseProgramAxis = DRAM_StockRepurchaseMember |
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| Number of common shares repurchased |
22,944us-gaap_TreasuryStockNumberOfSharesHeld / us-gaap_ShareRepurchaseProgramAxis = DRAM_StockRepurchaseMember |
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| Cost to repurchase common stock |
$ 142,262us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_ShareRepurchaseProgramAxis = DRAM_StockRepurchaseMember |
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| Total number of shares authorized for purchase |
136,408us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased / us-gaap_ShareRepurchaseProgramAxis = DRAM_StockRepurchaseMember |
166,667us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased / us-gaap_ShareRepurchaseProgramAxis = DRAM_StockRepurchaseMember |
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- Details
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- Definition
The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available.
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- Definition
The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available.
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- Definition
Number of shares held for each class of treasury stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of shares of common and preferred stock retired from treasury during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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