Quarterly report [Sections 13 or 15(d)]

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

v3.26.1
Description of Business, Basis of Presentation and Significant Accounting Policies - Additional Information (Detail)
 1 Months Ended 3 Months Ended
Jun. 01, 2017
USD ($)
Feb. 01, 2012
USD ($)
Dec. 31, 2005
USD ($)
Feb. 28, 2026
USD ($)
Segment
Feb. 28, 2025
USD ($)
Unit
Business, Basis of Presentation and Significant Accounting Policies [Line Items]          
Number of reportable segments | Segment       3  
Deferred revenue       $ 61,460,549  
Warranty payment $ 100,000 $ 75,000 $ 50,000    
Offset personal expenses 10,000        
Commission paid       7,244 $ 9,351
Additional capitalized contract acquisition costs       31,086 31,450
Impairment of contract assets       0 0
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       159,000 297,000
Unrealized holding (losses) gains, marketable securities       (240,458) (31,401)
Payment warranty     $ 50,000    
Increased payment warranty $ 100,000 $ 75,000      
Other Nonoperating Income (Expense) [Member]          
Business, Basis of Presentation and Significant Accounting Policies [Line Items]          
Unrealized holding (losses) gains, marketable securities       $ (240,000) $ 31,000
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]          
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       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.