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Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail) |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 01, 2017 USD ($) | Feb. 01, 2012 USD ($) | Oct. 10, 2001 USD ($) shares | Dec. 31, 2005 USD ($) | Nov. 30, 2020 USD ($) | May 31, 2019 USD ($) | Feb. 28, 2019 USD ($) | Nov. 30, 2020 USD ($) Segment Unit shares | Nov. 30, 2019 USD ($) shares | Dec. 01, 2018 USD ($)
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of reportable segments | Segment |  |  |  |  |  |  |  | 3 |  |
Concentration risk related to supplier |  |  |  |  |  |  |  | The Company depends on one supplier for the source of its collection kits |  |
Deferred revenue |  |  |  |  | $ 36,384,360 |  |  | $ 36,384,360 |  |
Warranty payment | $ 100,000 | $ 75,000 |  | $ 50,000 |  |  |  |  |  |
Commission paid |  |  |  |  |  |  |  | 49,609 | $ 35,300 |
Capitalized contract acquisition costs, net of amortization expense |  |  |  |  |  |  |  |  |  | $ 329,231
Cumulative amortization expense |  |  |  |  |  |  |  |  |  | $ 66,533
Additional capitalized contract acquisition costs, net of amortization expense |  |  |  |  |  |  |  | 89,471 | 87,518 |
Impairment of public inventory |  |  |  |  | 1,284,238 | $ 2,332,763 |  | 1,284,238 | 2,332,763 |
Impairment on long lived assets |  |  |  |  |  |  |  | 0 | 0 |
Uncertain tax provisions |  |  |  |  | 0 |  |  | 0 | 0 |
Provisions for interest or penalties related to uncertain tax positions |  |  |  |  |  |  |  | 0 | 0 |
Advertising cost included in selling, general and administrative expenses |  |  |  |  |  |  |  | 845,454 | 981,448 |
Cumulative-effect adjustment from accumulated other comprehensive income to retained earnings |  |  |  |  |  |  | $ 341,000 |  |  |
(Loss) gain on marketable securities |  |  |  |  |  |  |  | (8,000) | 28,000 |
Loss on cash liquidating distribution |  |  |  |  |  |  |  | (76,000) |  |
Investment |  |  |  |  | $ 807,000 |  |  | 807,000 |  |
Payment warranty |  |  |  | $ 50,000 |  |  |  |  |  |
Increased payment warranty | $ 100,000 | $ 75,000 |  |  |  |  |  |  |  |
Stock-based option compensation expense |  |  |  |  |  |  |  | $ 622,000 | $ 398,000 |
Employee Stock Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of outstanding options excluded from computation of diluted earnings per share | shares |  |  |  |  |  |  |  | 249,301 | 70,136 |
Umbilical Cord Blood and Cord Tissue Stem Cell Service and PrepaCyte-CB [Member] | Duke University [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Inventory, in units | Unit |  |  |  |  |  |  |  | 6,000 |  |
Number of units, per month | Unit |  |  |  |  |  |  |  | 12 |  |
Maximum [Member] | Umbilical Cord Blood and Cord Tissue Stem Cell Service and PrepaCyte-CB [Member] | Duke University [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Inventory, in units | Unit |  |  |  |  |  |  |  | 144 |  |
Accounts Receivables [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Period of doubtful for accounts receivable due from client |  |  |  |  |  |  |  | 30 days |  |
Option One [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Contracted storage amortization period |  |  |  |  | 21 years |  |  | 21 years |  |
Option Two [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Contracted storage amortization period |  |  |  |  | 1 year |  |  | 1 year |  |
Option Three [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Contracted storage amortization period |  |  |  |  |  |  |  | lifetime |  |
Contracted storage amortization description |  |  |  |  |  |  |  | The life-time storage plan is based on a life expectancy of 81 years, which is the current estimate by the Center for Disease Control for United States women’s life expectancy and concluded that additional data analysis would result in an immaterial difference in revenue. |  |
ASC 606 [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] |  |  |  |  | true |  |  | true |  |
Change in Accounting Principle, Accounting Standards Update, Adoption Date |  |  |  |  | Dec. 01, 2018 |  |  | Dec. 01, 2018 |  |
Change In Accounting Principle Accounting Standards Update Transition Option Elected [Extensible List] |  |  |  |  |  |  |  | us-gaap:AccountingStandardsUpdate201409RetrospectiveMember |  |
ASU 2016-02 [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] |  |  |  |  | true |  |  | true |  |
Change in Accounting Principle, Accounting Standards Update, Adoption Date |  |  |  |  | Dec. 01, 2019 |  |  | Dec. 01, 2019 |  |
Change In Accounting Principle Accounting Standards Update Transition Option Elected [Extensible List] |  |  |  |  |  |  |  | us-gaap:AccountingStandardsUpdate201602RetrospectiveMember |  |
Saneron Therapeutics, Inc. [Member] | CCEL Bio-Therapies, Inc. [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Issue of shares by parent and another subsidiary of parent to the share holder of company merged with wholly owned subsidiary | shares |  |  | 260,000 |  |  |  |  |  |  |
Fair value of shares issued by parent and another subsidiary of parent to the share holder of company merged with wholly owned subsidiary |  |  | $ 1,924,000 |  |  |  |  |  |  |
Saneron Therapeutics, Inc. [Member] | Stem Cell Preservation Technologies, Inc. [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Issue of shares by parent and another subsidiary of parent to the share holder of company merged with wholly owned subsidiary | shares |  |  | 195,000 |  |  |  |  |  |  |
Fair value of shares issued by parent and another subsidiary of parent to the share holder of company merged with wholly owned subsidiary |  |  | $ 3,900 |  |  |  |  |  |  |
Saneron [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  | 33.00% |  |  | 33.00% | 33.00% |
Saneron [Member] | CCEL Bio-Therapies, Inc. [Member] |  |  |  |  |  |  |  |  |  |
Business, Basis of Presentation and Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |
Non-Controlling interest after merger |  |  | 43.42% |  |  |  |  |  |  |

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