Cash, Cash Equivalents and Short-Term Investments - Equity Investments (Details) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Cash, Cash Equivalents and Short-Term Investments
Net gains (losses) recognized during the year on equity securities	$ (101,674)	$ (16,233)
Less: net gains (losses) recognized during the year on equity securities sold during the year	0	0
Unrealized gains (losses) recognized during the year on equity securities still held at December 31, 2019 and 2018	$ (101,674)	$ 16,233

Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI) sold during the period

No definition available.

+ Details

Name:	cyrx_EquitySecuritiesRealizedGainLossSold
Namespace Prefix:	cyrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117546-209714

+ Details

Name:	us-gaap_EquitySecuritiesFvNiRealizedGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

+ Details

Name:	us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration