Quarterly report pursuant to Section 13 or 15(d)

Description of Business, Basis of Presentation and Significant Accounting Policies - Additional Information (Detail)

v3.21.1
Description of Business, Basis of Presentation and Significant Accounting Policies - Additional Information (Detail)
1 Months Ended 3 Months Ended
Jun. 11, 2018
Jun. 01, 2017
USD ($)
Feb. 01, 2012
USD ($)
Dec. 31, 2005
USD ($)
Feb. 28, 2021
USD ($)
Segment
Unit
Nov. 30, 2020
USD ($)
Feb. 29, 2020
USD ($)
Feb. 23, 2021
Business, Basis of Presentation and Significant Accounting Policies [Line Items]                
Number of reportable segments | Segment         3      
Deferred revenue         $ 36,831,740      
Warranty payment   $ 100,000 $ 75,000 $ 50,000        
Commission paid         13,507   $ 11,535  
Additional capitalized contract acquisition costs, net of amortization expense         18,262   23,320  
Impairment of contract assets         0   0  
Impairment of public inventory           $ 1,284,238    
Uncertain tax provisions         0      
Provisions for interest or penalties related to uncertain tax positions         0   0  
Impairment on long lived assets         0   0  
Stock-based option compensation expense         85,000   224,000  
Unrealized holding (losses) gains, marketable securities         $ (3,000)   $ 55,000  
Number of units anticipated to be sold each year | Unit         18      
Percentage of decline in annual sales         3.00%      
Payment warranty       $ 50,000        
Increased payment warranty   $ 100,000 $ 75,000          
Discount Rate [Member]                
Business, Basis of Presentation and Significant Accounting Policies [Line Items]                
Contingent consideration measurement input         5.50      
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      
Change in Accounting Principle, Accounting Standards Update, Adoption Date         Dec. 01, 2019      
Change In Accounting Principle Accounting Standards Update Transition Option Elected [Extensible List]         us-gaap:AccountingStandardsUpdate201602RetrospectiveMember      
Cord:Use [Member]                
Business, Basis of Presentation and Significant Accounting Policies [Line Items]                
Acquisition date Jun. 11, 2018              
Duke University [Member]                
Business, Basis of Presentation and Significant Accounting Policies [Line Items]                
Contracted storage amortization period               15 years
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]                
Agreement expiration date         Jan. 31, 2025      
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      
Option Two [Member]                
Business, Basis of Presentation and Significant Accounting Policies [Line Items]                
Contracted storage amortization period         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.