Quarterly report pursuant to Section 13 or 15(d)

Sales of Securities (Details Narrative)

v2.4.1.9
Sales of Securities (Details Narrative) (USD $)
1 Months Ended 3 Months Ended 9 Months Ended 0 Months Ended 1 Months Ended
Nov. 17, 2014
Jan. 31, 2015
Jul. 31, 2014
Jan. 31, 2015
Jan. 31, 2014
May 11, 2011
Sep. 18, 2013
Jan. 31, 2015
Nov. 30, 2014
Mar. 31, 2014
Nov. 12, 2014
Mar. 20, 2014
Securities Purchase Agreements (Textual) [Abstract]                        
Net proceeds from sale of common stock and warrants         $ 695,491us-gaap_ProceedsFromIssuanceOfCommonStock              
Price per share $ 5.00us-gaap_SaleOfStockPricePerShare                      
Put/Call exercisable period       3 years 9 months 22 days [1]                
Risk-free interest rate, warrants       1.26%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate                
Expected volatility, warrants       100.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate                
Discount on notes payable, warrants   562,000us-gaap_DebtInstrumentUnamortizedDiscount   562,000us-gaap_DebtInstrumentUnamortizedDiscount       562,000us-gaap_DebtInstrumentUnamortizedDiscount        
Beneficial conversion feature       1,568,000us-gaap_DebtInstrumentConvertibleBeneficialConversionFeature                
Adjustments to additional paid in capital, beneficial conversion feature       188,000us-gaap_AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature                
Non-cash interest charge   617,000us-gaap_InterestExpenseOther 133,000us-gaap_InterestExpenseOther                  
Sale of Series A preferred stock                     600,000us-gaap_PreferredStockSharesIssued  
Proceeds from issuance of private placement 2,697,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement                      
Preferred Stock, call or exercise features       If current and projected revenue growth does not meet estimates, the Company may call upon the remaining Series A Stock available for sale. The Company has 673,400 Series A Shares available for call by the Company at $5.00 per share.                
Preferred stock, conversion terms The Series A Stock is convertible into shares of the Company’s common stock in an amount initially calculated (subject to adjustment) by dividing the $5.00 stated value of each share of Series A Stock by $2.00. The Preferred Warrants have an initial exercise price of $2.50 per share (subject to adjustment).                      
Common stock issued for services       182,500us-gaap_StockIssuedDuringPeriodSharesIssuedForServices                
Warrants issued for services       90,000DRAM_WarrantsIssuedForServices                
Securities Purchase Agreement of May 11, 2011                        
Securities Purchase Agreements (Textual) [Abstract]                        
Numer of common stock sold           295,833us-gaap_StockIssuedDuringPeriodSharesIssuedForCash
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= DRAM_SecuritiesPurchaseAgreement1Member
           
Number of common stock called by warrants           221,875us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ DRAM_AgreementAxis
= DRAM_SecuritiesPurchaseAgreement1Member
           
Net proceeds from sale of common stock and warrants           2,998,000us-gaap_ProceedsFromIssuanceOfCommonStock
/ DRAM_AgreementAxis
= DRAM_SecuritiesPurchaseAgreement1Member
           
Combination of securities offered in Securities Purchase Agreement, description           The common stock and warrants were sold in fixed combinations, with each combination consisting of one share of common stock and 0.75 of one warrant, with each whole warrant exercisable for one share of common stock.            
Purchase price per fixed combination           11.28DRAM_PriceOfSecurityPerFixedCombinationOfCommonStockAndWarrant
/ DRAM_AgreementAxis
= DRAM_SecuritiesPurchaseAgreement1Member
           
Description of period for exercisability of warrants           The warrants became exercisable six months and one day following the closing date of the Offering and will remain exercisable for five years thereafter.            
Percentage of holding in common stock after which exercisability of warrant may be limited           4.99%DRAM_PercentageOfHoldingInCommonStockAfterWhichExercisabilityOfWarrantBeLimited
/ DRAM_AgreementAxis
= DRAM_SecuritiesPurchaseAgreement1Member
           
Right to call warrants for cancellation, description           After the one year anniversary of the initial exercise date of the warrants, the Company has the right to call the warrants for cancellation for $.006 per warrant in the event that the volume weighted average price of the Company’s Common Stock for 20 consecutive trading days exceeds $27.12.            
Exercise price of warrants           $ 13.56us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ DRAM_AgreementAxis
= DRAM_SecuritiesPurchaseAgreement1Member
           
Securities Purchase Agreement of September 18, 2013                        
Securities Purchase Agreements (Textual) [Abstract]                        
Numer of common stock sold             350,931us-gaap_StockIssuedDuringPeriodSharesIssuedForCash
/ DRAM_AgreementAxis
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Proceeds from sale of common stock and warrants, gross             807,000us-gaap_StockIssuedDuringPeriodValueIssuedForCash
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= DRAM_SecuritiesPurchaseAgreement2Member
         
Net proceeds from sale of common stock and warrants             695,491us-gaap_ProceedsFromIssuanceOfCommonStock
/ DRAM_AgreementAxis
= DRAM_SecuritiesPurchaseAgreement2Member
         
Combination of securities offered in Securities Purchase Agreement, description             The common stock and warrants were sold in fixed combinations, with each combination consisting of one share of common stock and one warrant, with each warrant exercisable for one share of common stock.          
Purchase price per fixed combination             2.30DRAM_PriceOfSecurityPerFixedCombinationOfCommonStockAndWarrant
/ DRAM_AgreementAxis
= DRAM_SecuritiesPurchaseAgreement2Member
         
Description of period for exercisability of warrants             The exercisability of the warrants may be limited if, upon exercise, the holder or any of its affiliates would beneficially own more that 4.99% of the Common Stock.          
Percentage of holding in common stock after which exercisability of warrant may be limited             4.99%DRAM_PercentageOfHoldingInCommonStockAfterWhichExercisabilityOfWarrantBeLimited
/ DRAM_AgreementAxis
= DRAM_SecuritiesPurchaseAgreement2Member
         
Right to call warrants for cancellation, description             After the one year anniversary of the initial exercise date of the warrants, the Company had the right to call the warrants for cancellation for $.001 per share in the event that the volume weighted average price of the Company’s Common Stock for 20 consecutive trading days exceeds $10.00.          
Securities Purchase Agreement of November 17, 2014                        
Securities Purchase Agreements (Textual) [Abstract]                        
Price per share $ 5.00us-gaap_SaleOfStockPricePerShare
/ DRAM_AgreementAxis
= DRAM_SecuritiesPurchaseAgreement3Member
                     
Sale of Series A preferred stock 600,000us-gaap_PreferredStockSharesIssued
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Proceeds from issuance of private placement                 2,697,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement
/ DRAM_AgreementAxis
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Preferred Stock, call or exercise features                 At any time from November 17, 2014, and prior to October 20, 2019 (the “Put/Call Exercise Period”), the investors may exercise a right to purchase and require the Company to sell up to an additional 700,000 shares of Series A Stock. If the investors have not exercised this right during the Put/Call Exercise Period, the Company may exercise a right to cause and require the investors to purchase up to an additional 700,000 shares of Series A Stock, for an aggregate purchase price of $3,500,000. Neither party can refuse the put or call. If the maximum additional shares are sold/purchased, the gross proceeds to the Company would be $3,500,000.      
Preferred stock, conversion terms                 Holders of the Series A Stock shall initially have the right to convert such shares of Series A Stock into the number of authorized but previously unissued shares of the Company’s common stock obtained by dividing the stated value of each share of Series A ($5.00) by $2.00. For each share of Series A Stock, the investors will receive 2.5 Preferred Warrants to purchase the Company’s common stock at an exercise price of $2.50 per share. The Preferred Warrants are exercisable immediately for a period of five years from the date of closing. The exercise price of the Preferred Warrants is subject to adjustments in the case of stock splits, stock dividends, combinations of shares and similar recapitalization transactions. The exercisability of the Preferred Warrants may be limited if upon exercise, the warrant holder or any of its affiliates would beneficially own more than 4.99% of the Company’s Common Stock.      
Preferred stock, dividend rate percentage                 8.00%us-gaap_PreferredStockDividendRatePercentage
/ DRAM_AgreementAxis
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Preferred stock, dividend rate per share amount                 $ 0.40us-gaap_PreferredStockDividendRatePerDollarAmount
/ DRAM_AgreementAxis
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Preferred stock, dividend payment terms               As of January 1, 2015, the Company was in the process of issuing approximately 27,500 shares in settlement of the first dividend payment. The value of these shares is therefore presented on the consolidated balance sheets as Shares to be issued.        
Common Stock Purchase Agreement                        
Securities Purchase Agreements (Textual) [Abstract]                        
Numer of common stock sold                   219,754us-gaap_StockIssuedDuringPeriodSharesIssuedForCash
/ DRAM_AgreementAxis
= DRAM_CommonStockPurchaseAgreementMember
   
Proceeds from sale of common stock and warrants, gross                   559,000us-gaap_StockIssuedDuringPeriodValueIssuedForCash
/ DRAM_AgreementAxis
= DRAM_CommonStockPurchaseAgreementMember
   
Price per share                       $ 3.00us-gaap_SaleOfStockPricePerShare
/ DRAM_AgreementAxis
= DRAM_CommonStockPurchaseAgreementMember
Warrants exercised                   86,100us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised
/ DRAM_AgreementAxis
= DRAM_CommonStockPurchaseAgreementMember
   
Exercise price of warrants                       $ 3.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ DRAM_AgreementAxis
= DRAM_CommonStockPurchaseAgreementMember
Proceeds from exercise of warrants                   $ 306,350us-gaap_ProceedsFromWarrantExercises
/ DRAM_AgreementAxis
= DRAM_CommonStockPurchaseAgreementMember
   
Common stock issued upon exercise of warrants                   86,100us-gaap_StockIssuedDuringPeriodSharesOther
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Warrant                        
Securities Purchase Agreements (Textual) [Abstract]                        
Exercise price of warrants   $ 2.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ DRAM_AgreementAxis
= us-gaap_WarrantMember
  $ 2.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ DRAM_AgreementAxis
= us-gaap_WarrantMember
      2.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ DRAM_AgreementAxis
= us-gaap_WarrantMember
       
Warrant exercisable period       5 years                
Risk-free interest rate, warrants       1.64%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ DRAM_AgreementAxis
= us-gaap_WarrantMember
               
Expected volatility, warrants       93.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ DRAM_AgreementAxis
= us-gaap_WarrantMember
               
Put and Call                        
Securities Purchase Agreements (Textual) [Abstract]                        
Put/Call strike price   5.00us-gaap_DerivativePriceRiskOptionStrikePrice
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= us-gaap_PutOptionMember
  5.00us-gaap_DerivativePriceRiskOptionStrikePrice
/ DRAM_AgreementAxis
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      5.00us-gaap_DerivativePriceRiskOptionStrikePrice
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Put/Call exercisable period       5 years                
Put/Call fair value assumptions, exercise price   $ 5.58us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
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  $ 5.58us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
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      5.58us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
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Risk-free interest rate, warrants       1.64%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ DRAM_AgreementAxis
= us-gaap_PutOptionMember
               
Expected volatility, warrants       93.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ DRAM_AgreementAxis
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Expected dividend yield       8.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
/ DRAM_AgreementAxis
= us-gaap_PutOptionMember
               
[1] This amount represents the weighted average remaining contractual life of stock options in years.