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Stockholders' Equity (Narrative) (Details) (USD $)
3 Months Ended 9 Months Ended 12 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Mar. 31, 2014
Aug. 31, 2014
Mar. 31, 2013
May 02, 2014
Jan. 31, 2015
Class of Stock [Line Items]                  
Common stock, shares authorized 250,000,000us-gaap_CommonStockSharesAuthorized   250,000,000us-gaap_CommonStockSharesAuthorized   250,000,000us-gaap_CommonStockSharesAuthorized   250,000,000us-gaap_CommonStockSharesAuthorized    
Common stock, par value $ 0.001us-gaap_CommonStockParOrStatedValuePerShare   $ 0.001us-gaap_CommonStockParOrStatedValuePerShare   $ 0.001us-gaap_CommonStockParOrStatedValuePerShare   $ 0.001us-gaap_CommonStockParOrStatedValuePerShare    
Preferred stock, par value $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare   $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare   $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare   $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare    
Preferred stock, shares authorized 2,500,000us-gaap_PreferredStockSharesAuthorized   2,500,000us-gaap_PreferredStockSharesAuthorized   2,500,000us-gaap_PreferredStockSharesAuthorized   2,500,000us-gaap_PreferredStockSharesAuthorized    
Preferred Stock, Liquidation Preference Per Share $ 12.00us-gaap_PreferredStockLiquidationPreference   $ 12.00us-gaap_PreferredStockLiquidationPreference            
Rate Of One Share For Each Dividend     $ 0.40cyrx_RateOfOneShareForEachDividend            
Gross Proceeds from Issuance of Preferred Stock     $ 3,400,000cyrx_GrossProceedsFromIssuanceOfPreferredStock            
Proceeds from Issuance of Convertible Preferred Stock     2,800,000us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock            
Stock Issued During Period, Shares, New Issues     279,280us-gaap_StockIssuedDuringPeriodSharesNewIssues            
Class Of Warrant Or Right, Number Of Securities Called By Warrants Or Rights 2,234,240us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights   2,234,240us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights            
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1   $ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1            
Debt Instrument, Face Amount 1,793,000us-gaap_DebtInstrumentFaceAmount   1,793,000us-gaap_DebtInstrumentFaceAmount            
Units Issued Per Units To Investors     $ 12.00cyrx_UnitsIssuedPerUnitsToInvestors   $ 12.00cyrx_UnitsIssuedPerUnitsToInvestors        
Debt Instrument, Convertible, Conversion Price $ 10.80us-gaap_DebtInstrumentConvertibleConversionPrice1   $ 10.80us-gaap_DebtInstrumentConvertibleConversionPrice1            
Interest Payable 24,000us-gaap_InterestPayableCurrentAndNoncurrent   24,000us-gaap_InterestPayableCurrentAndNoncurrent            
Fair Value Of Warrants Issued 3,000,000cyrx_FairValueOfWarrantsIssued   3,000,000cyrx_FairValueOfWarrantsIssued            
Preferred Stock, Shares Outstanding         0us-gaap_PreferredStockSharesOutstanding   0us-gaap_PreferredStockSharesOutstanding    
Class of Warrant or Right, Outstanding 3,543,104us-gaap_ClassOfWarrantOrRightOutstanding   3,543,104us-gaap_ClassOfWarrantOrRightOutstanding   262,856us-gaap_ClassOfWarrantOrRightOutstanding   312,856us-gaap_ClassOfWarrantOrRightOutstanding    
Preferred Stock Dividends, Income Statement Impact 95,304us-gaap_PreferredStockDividendsIncomeStatementImpact 0us-gaap_PreferredStockDividendsIncomeStatementImpact 194,901us-gaap_PreferredStockDividendsIncomeStatementImpact 0us-gaap_PreferredStockDividendsIncomeStatementImpact          
Convertible Preferred Stock Converted to Other Securities     101,800,000us-gaap_ConvertiblePreferredStockConvertedToOtherSecurities            
Debt Conversion, Original Debt, Amount     1,766,997us-gaap_DebtConversionOriginalDebtAmount1 0us-gaap_DebtConversionOriginalDebtAmount1          
Allocated Share-based Compensation Expense     9,000us-gaap_AllocatedShareBasedCompensationExpense            
Preferred Stock, Dividend Rate, Per-Dollar-Amount     $ 0.96us-gaap_PreferredStockDividendRatePerDollarAmount            
Common Stock, Capital Shares Reserved For Future Issuance 101,802,919us-gaap_CommonStockCapitalSharesReservedForFutureIssuance   101,802,919us-gaap_CommonStockCapitalSharesReservedForFutureIssuance   73,088,548us-gaap_CommonStockCapitalSharesReservedForFutureIssuance        
Consultant [Member]                  
Class of Stock [Line Items]                  
Stock Issued During Period, Shares, New Issues           20,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ cyrx_ServicesAxis
= cyrx_ConsultantMember
     
Other Investors [Member]                  
Class of Stock [Line Items]                  
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ cyrx_InvestorsAxis
= cyrx_OtherInvestorsMember
  $ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ cyrx_InvestorsAxis
= cyrx_OtherInvestorsMember
           
Percentage Of Commission     10.00%cyrx_PercentageOfCommission
/ cyrx_InvestorsAxis
= cyrx_OtherInvestorsMember
           
Percentage Of Non accountable Finance Fee     3.00%cyrx_PercentageOfNonAccountableFinanceFee
/ cyrx_InvestorsAxis
= cyrx_OtherInvestorsMember
           
Reimbursement Of Legal Expense     40,000cyrx_ReimbursementOfLegalExpense
/ cyrx_InvestorsAxis
= cyrx_OtherInvestorsMember
           
Bridge Notes Investors [Member]                  
Class of Stock [Line Items]                  
Percentage Of Commission     3.00%cyrx_PercentageOfCommission
/ cyrx_InvestorsAxis
= cyrx_BridgeNotesInvestorsMember
           
Percentage Of Non accountable Finance Fee     1.00%cyrx_PercentageOfNonAccountableFinanceFee
/ cyrx_InvestorsAxis
= cyrx_BridgeNotesInvestorsMember
           
Two Bridge Notes [Member]                  
Class of Stock [Line Items]                  
Debt Instrument, Face Amount 220,000us-gaap_DebtInstrumentFaceAmount
/ cyrx_InvestorsAxis
= cyrx_TwoBridgeNotesMember
  220,000us-gaap_DebtInstrumentFaceAmount
/ cyrx_InvestorsAxis
= cyrx_TwoBridgeNotesMember
           
Bridge Notes 5 [Member]                  
Class of Stock [Line Items]                  
Class Of Warrant Or Right, Number Of Securities Called By Warrants Or Rights 1,308,864us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ cyrx_InvestorsAxis
= cyrx_BridgeNotes5Member
  1,308,864us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ cyrx_InvestorsAxis
= cyrx_BridgeNotes5Member
           
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ cyrx_InvestorsAxis
= cyrx_BridgeNotes5Member
  $ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ cyrx_InvestorsAxis
= cyrx_BridgeNotes5Member
           
Debt Conversion, Original Debt, Amount     $ 1,743,000us-gaap_DebtConversionOriginalDebtAmount1
/ cyrx_InvestorsAxis
= cyrx_BridgeNotes5Member
           
Emergent Financial Group, Inc. [Member]                  
Class of Stock [Line Items]                  
Class of Warrant or Right, Outstanding 1,241,592us-gaap_ClassOfWarrantOrRightOutstanding
/ cyrx_InvestorsAxis
= cyrx_EmergentFinancialGroupIncMember
  1,241,592us-gaap_ClassOfWarrantOrRightOutstanding
/ cyrx_InvestorsAxis
= cyrx_EmergentFinancialGroupIncMember
           
Preferred Class A [Member] | Bridge Notes 5 [Member]                  
Class of Stock [Line Items]                  
Stock Issued During Period, Shares, New Issues     163,608us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ cyrx_InvestorsAxis
= cyrx_BridgeNotes5Member
/ us-gaap_StatementClassOfStockAxis
= us-gaap_PreferredClassAMember
           
Class A convertible preferred stock [Member]                  
Class of Stock [Line Items]                  
Preferred stock, par value               $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_ConvertiblePreferredStockMember
 
Preferred stock, shares authorized               800,000us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= us-gaap_ConvertiblePreferredStockMember
 
Stock Issued During Period, Shares, New Issues     4,167us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementClassOfStockAxis
= us-gaap_ConvertiblePreferredStockMember
           
Preferred Stock, Shares Outstanding 442,888us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= us-gaap_ConvertiblePreferredStockMember
  442,888us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= us-gaap_ConvertiblePreferredStockMember
           
Stock Option And Warrants [Member]                  
Class of Stock [Line Items]                  
Common Stock, Capital Shares Reserved For Future Issuance         73,100,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_StatementClassOfStockAxis
= cyrx_StockOptionAndWarrantsMember
       
Subsequent Event [Member]                  
Class of Stock [Line Items]                  
Class Of Warrant Or Right, Number Of Securities Called By Warrants Or Rights                 2,162,500us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Subsequent Event [Member] | Preferred Class A [Member]                  
Class of Stock [Line Items]                  
Convertible Preferred Stock Designated               800,000cyrx_ConvertiblePreferredStockDesignated
/ us-gaap_StatementClassOfStockAxis
= us-gaap_PreferredClassAMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember