v3.26.3
Description of Business, Basis of Presentation and Significant Accounting Policies - Additional Information (Detail)
 1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended
Jun. 01, 2017
USD ($)
Feb. 01, 2012
USD ($)
Dec. 31, 2005
USD ($)
Aug. 31, 2026
USD ($)
Aug. 31, 2025
USD ($)
May 31, 2026
Unit
Aug. 31, 2026
USD ($)
Segment
Unit
Aug. 31, 2025
USD ($)
Business, Basis of Presentation and Significant Accounting Policies [Line Items]                
Number of reportable segments | Segment             3  
Deferred revenue       $ 63,972,130     $ 63,972,130  
Warranty payment $ 100,000 $ 75,000 $ 50,000          
Offset personal expenses 10,000              
Commission paid       7,277 $ 8,867   20,896 $ 27,350
Additional capitalized contract acquisition costs, net of amortization expense       30,142 27,702   91,017 88,543
Impairment of contract assets       0 0   0 0
Uncertain tax provisions       0     0  
Provisions for interest or penalties related to uncertain tax positions             0 0
Impairment on long lived assets       0 0   0 0
Stock-based option compensation expense       92,514 36,782   315,967 374,198
Unrealized holding (losses) gains, marketable securities       69,755 (193,886)   (98,684) (604,619)
Payment warranty     $ 50,000          
Increased payment warranty $ 100,000 $ 75,000            
Location, Statement of Income, Balance [Axis]: us-gaap:NonoperatingIncomeExpense                
Business, Basis of Presentation and Significant Accounting Policies [Line Items]                
Unrealized holding (losses) gains, marketable securities       $ 69,755 $ (193,886)   $ (98,684) $ (604,619)
Duke University [Member]                
Business, Basis of Presentation and Significant Accounting Policies [Line Items]                
Contracted storage amortization period       16 years     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]                
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 1 year   1 year 1 year
Option Two [Member]                
Business, Basis of Presentation and Significant Accounting Policies [Line Items]                
Contracted storage amortization period       21 years     21 years  
Option Three [Member]                
Business, Basis of Presentation and Significant Accounting Policies [Line Items]                
Contracted storage amortization period               life-time
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 the Company concluded that additional data analysis would result in an immaterial difference in revenue recognition.