Annual report pursuant to Section 13 and 15(d)

Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail)

v3.22.4
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 ($)
Feb. 01, 2012
USD ($)
Dec. 31, 2005
USD ($)
Nov. 30, 2021
USD ($)
Nov. 30, 2022
USD ($)
Unit
Segment
shares
Nov. 30, 2021
USD ($)
shares
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         $ 45,586,386  
Warranty payment $ 100,000 $ 75,000 $ 50,000      
Commission paid         50,977 $ 49,378
Additional capitalized contract acquisition costs, net of amortization expense         109,673 95,168
Impairment of contract assets         0 0
Impairment of public inventory       $ 1,164,499 0 1,164,499
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         755,921 841,514
Losses on marketable securities         (39,000) (13,000)
Derivative gain loss on derivative net         446,200 0
Payment warranty     $ 50,000      
Increased payment warranty $ 100,000 $ 75,000        
Stock-based option compensation expense         $ 461,000 $ 302,000
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         635,301 15,900
Duke University [Member]            
Business, Basis of Presentation and Significant Accounting Policies [Line Items]            
Contracted storage amortization period         16 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         36  
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         36  
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         1 year  
Option Two [Member]            
Business, Basis of Presentation and Significant Accounting Policies [Line Items]            
Contracted storage amortization period         18 years  
Option Three [Member]            
Business, Basis of Presentation and Significant Accounting Policies [Line Items]            
Contracted storage amortization period         21 years  
Option Four [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.