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 9 Months Ended
Jun. 05, 2017
USD ($)
Feb. 01, 2012
USD ($)
Dec. 31, 2005
USD ($)
Aug. 31, 2017
USD ($)
CompensationPlan
Aug. 31, 2016
USD ($)
Aug. 31, 2017
USD ($)
CompensationPlan
Deliverables
Segments
Aug. 31, 2016
USD ($)
Nov. 30, 2016
USD ($)
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       $ 2,301,000   $ 2,301,000   $ 2,301,000
U.S. Income tax expense (benefit)       437,000 $ (990,000) 1,039,000 $ (842,000)  
Income tax expense (benefit)       490,558 (898,838) 1,128,012 (697,103)  
Foreign income tax expense       53,000 91,000 $ 89,000 145,000  
Minimum percentage probability of realized tax benefit on settlement           50.00%    
Provisions for interest or penalties related to uncertain tax positions       0 0 $ 0 0  
Uncertain tax provisions       0 0 0 0  
Impairment on long lived assets       $ 0 0 $ 0 0  
Goodwill impairment charge         1,666,430   1,666,430 111,392
Number of employee stock based compensation plan | CompensationPlan       2   2    
Stock-based option compensation expense       $ 238,000 433,000 $ 709,000 821,000  
Unrealized holding gain (losses), trading securities       4,784 (29,371) (60,425) (50,023)  
Unrealized gain (losses) on marketable securities, net of tax       34,038 $ (14,122) 60,678 $ (114,342)  
Payment warranty     $ 50,000          
Increased payment warranty $ 100,000 $ 75,000            
Additional payment warranty   $ 10,000            
Reserves recorded under programs       $ 18,000   $ 18,000   17,000
Accounts Receivable [Member]                
Schedule of Available-for-sale Securities [Line Items]                
Period of doubtful for accounts receivable due from client           30 days    
PrepaCyte CB [Member]                
Schedule of Available-for-sale Securities [Line Items]                
Goodwill impairment charge               $ 1,777,822
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