Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
Description of Business, Basis of Presentation and Significant Accounting Policies - Additional Information (Detail)
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 01, 2012
USD ($)
Dec. 31, 2005
USD ($)
May 31, 2017
USD ($)
CompensationPlan
May 31, 2016
USD ($)
May 31, 2017
USD ($)
CompensationPlan
Deliverables
Segments
May 31, 2016
USD ($)
Nov. 30, 2016
USD ($)
Aug. 31, 2016
USD ($)
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  
Income tax expense     331,737 $ 201,735 637,454 $ 201,735    
Foreign income tax expense     36,000 54,000 $ 36,000 54,000    
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             111,392 $ 1,666,430
Number of employee stock based compensation plan | CompensationPlan     2   2      
Stock-based option compensation expense     $ 394,000 136,000 $ 471,000 388,000    
Unrealized holding gain (losses), trading securities     (38,590) (823) (65,210) (20,652)    
Unrealized gain (losses) on marketable securities, net of tax     33,701 $ (6,493) 26,640 $ (100,220)    
Payment warranty   $ 50,000            
Increased payment warranty $ 75,000              
Additional payment warranty $ 10,000              
Reserves recorded under programs     $ 17,000   $ 17,000   17,000  
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