Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail)
 1 Months Ended 3 Months Ended 9 Months Ended
Jun. 01, 2017
USD ($)
Feb. 01, 2012
USD ($)
Dec. 31, 2005
USD ($)
Aug. 31, 2020
USD ($)
CompensationPlan
Aug. 31, 2019
USD ($)
May 31, 2019
USD ($)
Feb. 28, 2019
USD ($)
Aug. 31, 2020
USD ($)
Segment
Unit
CompensationPlan
Aug. 31, 2019
USD ($)
Dec. 01, 2018
USD ($)
Business, Basis of Presentation and Significant Accounting Policies [Line Items]                    
Number of reportable segments | Segment               3    
Deferred revenue       $ 35,308,468       $ 35,308,468    
Warranty payment $ 100,000 $ 75,000 $ 50,000              
Offset personal expenses 10,000                  
Commission paid       14,261 $ 10,747     37,405 $ 25,216  
Capitalized contract acquisition costs, net of amortization expense                   $ 329,231
Cumulative amortization expense                   $ 66,533
Additional capitalized contract acquisition costs, net of amortization expense       22,351 23,180     68,152 67,668  
Impairment charges         2,332,763 $ 2,332,763     2,332,763  
Uncertain tax provisions       0 0     0 0  
Provisions for interest or penalties related to uncertain tax positions       0 0     0 0  
Impairment on long lived assets       $ 0 0     $ 0 0  
Number of employee stock based compensation plan | CompensationPlan       2       2    
Stock-based option compensation expense       $ 162,000 14,000     $ 451,000 240,000  
Cumulative-effect adjustment from accumulated other comprehensive income to retained earnings             $ 341,000      
Holding gain (losses), marketable securities       (135,000) $ 35,000     (133,000) $ (1,000)  
Loss on cash liquidating distribution       $ (175,000)       $ (175,000)    
Payment warranty     $ 50,000              
Increased payment warranty $ 100,000 75,000                
Additional payment warranty   $ 10,000                
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    
Umbilical Cord Blood and Cord Tissue Stem Cell Service and PrepaCyte-CB [Member] | Maximum [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               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 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