Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Description of Business, Basis of Presentation and Significant Accounting Policies - Additional Information (Detail)
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 01, 2012
USD ($)
Dec. 31, 2005
USD ($)
Feb. 28, 2018
USD ($)
Deliverables
Segments
Feb. 28, 2017
USD ($)
CompensationPlan
Nov. 30, 2018
Nov. 30, 2017
USD ($)
Schedule of Available-for-sale Securities [Line Items]            
Number of deliverables for revenue recognized | Deliverables     2      
Period of doubtful for accounts receivable due from client     21 years      
Contracted storage periods option two     21 years      
Contracted storage periods option one     1 year      
Contracted storage periods option three     Lifetime      
Deferred revenue recognition period     12 months      
Valuation allowance     $ 1,605,000     $ 2,316,000
U.S. Income tax expense (benefit)     3,203,000 $ 306,000    
Income tax expense     2,985,000      
Foreign income tax expense     $ 0 0    
Minimum percentage probability of realized tax benefit on settlement     50.00%      
Provisions for interest or penalties related to uncertain tax positions     $ 0 0    
Uncertain tax provisions     0 0    
Impairment on long lived assets     0 $ 0    
Number of employee stock based compensation plan | CompensationPlan       2    
Stock-based option compensation expense     556,000 $ 77,000    
Unrealized holding losses, trading securities     (34,000) (26,600)    
Unrealized (losses) gains on marketable securities, net of tax     118,746 $ (7,061)    
Payment warranty   $ 50,000        
Increased payment warranty $ 75,000          
Additional payment warranty $ 10,000          
Reserves recorded under programs     $ 18,000     $ 18,000
Scenario, Plan [Member]            
Schedule of Available-for-sale Securities [Line Items]            
Federal tax rate         21.00%  
Accounts Receivable [Member]            
Schedule of Available-for-sale Securities [Line Items]            
Period of doubtful for accounts receivable due from client     30 days      
Umbilical Cord Blood and Cord Tissue Stem Cell Service and PrepaCyte-CB [Member]            
Schedule of Available-for-sale Securities [Line Items]            
Number of reportable segments | Segments     2