Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details)

v3.20.1
Subsequent Events (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 05, 2020
USD ($)
Dec. 13, 2019
USD ($)
Feb. 28, 2020
USD ($)
Feb. 24, 2020
USD ($)
Feb. 20, 2020
Mar. 31, 2020
USD ($)
shares
Dec. 31, 2019
$ / shares
shares
Apr. 01, 2020
USD ($)
$ / shares
shares
Feb. 28, 2020
CNY (¥)
Feb. 24, 2020
CNY (¥)
Aug. 29, 2019
USD ($)
Dec. 31, 2018
$ / shares
shares
Common stock,price per share | $ / shares             $ 0.0001         $ 0.0001
Common stock, Share | shares             76,730,802         73,830,751
Sales Agreement [Member]                        
Common stock aggregate offering price   $ 20,000,000                    
Received of net cash proceeds   261,206                    
Other offering expenses   $ 12,530                    
Sales Agreement [Member]                        
Common stock,price per share | $ / shares             $ 0.0001          
Subsequent events, description             From January 1, 2020 to April 2, 2020, Jefferies sold an aggregate of 980,358 shares of common stock at an average price of $1.66 per share to investors. The Company received net cash proceeds of $1,549,265, net of cash fee paid for sales agent's commission and other offering expenses of $74,319.          
Line of Credit [Member]                        
Line of credit                     $ 20,000,000  
Subsequent Events [Member]                        
Subsequent events, description         (i) a Letter Agreement with Dr. David Jin, Chief Executive Officer of the Company, pursuant to which the term of Dr. Jin's Executive Employment Agreement entered between the Company and Dr. Jin dated December 1, 2016 was extended an additional three years and granted Dr. Jin a Stock Option to acquire 400,000 shares of common stock at an exercise price of $1.52 per share for a period of ten years, (ii) a Letter Agreement with Meng Li, Chief Operating Officer of the Company, pursuant to which the term of Ms. Li's Executive Employment Agreement entered between the Company' subsidiary and Ms. Li dated January 11, 2017 was extended an additional three years and granted Ms. Li a Stock Option to acquire 300,000 shares of common stock at an exercise price of $1.52 per share for a period of ten years and (iii) a Letter Agreement with Luisa Ingargiola, Chief Financial Officer of the Company, granting Ms. Ingargiola a Stock Option to acquire 400,000 shares of common stock at an exercise price of $1.52 per share for a period of ten years.              
Subsequent Events [Member] | Subscription Agreement [Member]                        
Common stock, Share | shares               645,161        
Common stock, No par value | $ / shares               $ 1.55        
Aggregate purchase price               $ 1,000,000        
Subsequent Events [Member] | Beijing GenExosome                        
Lease rent     $ 120                  
Security deposit     $ 700                  
Lease term description     The term of the lease is 13 months commencing on March 15, 2020 and expires on April 14, 2021 with one month of free rent.                  
Total rent     $ 1,400                  
Subsequent Events [Member] | Beijing GenExosome | RMB [Member]                        
Lease rent | ¥                 ¥ 833      
Security deposit | ¥                 5,000      
Total rent | ¥                 ¥ 10,000      
Subsequent Events [Member] | Beijing Office Lease [Member]                        
Lease rent       $ 7,000                
Security deposit       $ 24,000                
Lease term description       The term of the Beijing Office Lease is 12 months commencing on March 1, 2020 and expires on February 28, 2021.                
Maintenance fees       $ 600                
Subsequent Events [Member] | Beijing Office Lease [Member] | RMB [Member]                        
Lease rent | ¥                   ¥ 50,586    
Security deposit | ¥                   164,764    
Maintenance fees | ¥                   ¥ 4,336    
Subsequent Events [Member] | Line of Credit [Member]                        
Credit facility $ 300,000                      
Line of credit 20,000,000                      
Remaining Credit facility 17,100,000                      
Total principal amount $ 2,900,000                      
Common stock for services | shares           222,577            
Fair market values of grantes           $ 213,300            
Stock-based compensation expense           156,093            
Prepaid expense           $ 57,207