Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY (Details)

v3.20.4
STOCKHOLDERS' EQUITY (Details)
12 Months Ended
Dec. 17, 2018
shares
Aug. 15, 2018
CNY (¥)
shares
Mar. 21, 2018
$ / shares
shares
Jan. 09, 2018
USD ($)
$ / shares
shares
Dec. 22, 2017
USD ($)
$ / shares
shares
Dec. 21, 2017
USD ($)
$ / shares
shares
Sep. 01, 2017
USD ($)
$ / shares
shares
Dec. 19, 2016
$ / shares
shares
Sep. 30, 2020
CNY (¥)
shares
Sep. 30, 2020
USD ($)
$ / shares
shares
Sep. 30, 2019
USD ($)
$ / shares
shares
Sep. 30, 2018
USD ($)
Dec. 18, 2018
$ / shares
Aug. 15, 2018
USD ($)
$ / shares
Sep. 29, 2015
Total stockholders' equity | $                   $ 44,993,935 $ 43,518,039        
Common stock, par value | $ / shares               $ 1              
Common stock, no par value | $ / shares     $ 0             $ 0 $ 0        
Stock split description               a 180 for 1 forward stock split whereby every authorized, issued and outstanding ordinary shares was exchanged for 180 new ordinary shares              
Common stock, shares authorized | shares               9,000,000   50,000,000 50,000,000        
Shares issued | shares     30,000                        
Shares issued, price per share | $ / shares     $ 5.88                        
Number of warrants issued | shares             74,784                
Warrants issued, percentage             7.00%                
Warrants expiration term             5 years                
Class of warrant or right, exercise price of warrants or rights | $ / shares             $ 5                
Class of warrant or right, outstanding | shares                   74,784          
Warrants not settleable in cash, fair value disclosure | $             $ 438,234                
Risk free interest rate             2.00%                
Expected term             5 years   3 years 3 years          
Warrants exercised | shares                 0 0          
Exercise price | $ / shares             $ 5                
Volatility rate             67.40%                
Number of tree step | $             10                
Statutory surplus reserve | $                   $ 2,904,699 $ 2,904,699        
Net loss | $                   $ (837,016) 8,193,694 $ 7,103,057      
Retained earnings, appropriated | $                     $ 7,198,466        
Debt conversion, shares issued | shares   3,280,525                          
Exchange rate   0.144238               6.7896 7.1477 6.8680   0.144238  
Statutory surplus reserve                              
Net loss | $                     $ 872,924 $ 858,412      
Retained earnings, appropriated | $                     $ 7,157,061        
Minimum                              
Statutory surplus reserves percentage                   10.00%          
Maximum                              
Statutory surplus reserves percentage                     50.00%        
Private Placement                              
Common stock, no par value | $ / shares       $ 0 $ 0 $ 0                  
Proceeds from issuance of private placement | $       $ 500,000 $ 420,000 $ 100,000                  
Shares issued | shares       62,500 70,000 16,666                  
Shares issued, price per share | $ / shares       $ 8.00 $ 6.00 $ 6.00                  
Zhenglong Ecommerce                              
Sale Consideration On Sale of Equity Interests | ¥                 ¥ 4,500,000            
ZK Uganda                              
Noncontrolling interest, ownership percentage by parent                   20.00%          
Wenzhou Weijia                              
Noncontrolling interest, ownership percentage by parent                   99.00%         99.00%
HUANG Jian Cong                              
Noncontrolling interest, ownership percentage by noncontrolling owners                   1.00% 1.00%        
Notes payable, related parties   ¥ 64,079,472                       $ 9,242,676  
Debt instrument, convertible, conversion price | $ / shares                           $ 2.82  
Debt instrument, convertible, threshold percentage of stock price trigger   75.00%                          
Notes payable | ¥   ¥ 69,000,000                          
WANG Jian Di                              
Ownership interest 1.69%                            
Zhejiang Zhengkang                              
Ownership interest                 90.00% 90.00%          
Third Party Individual                              
Ownership interest                 10.00% 10.00%          
WANG Ming Jie | Subsidiary One                              
Ownership interest                 10.87% 10.87%          
WANG Guo Lin | Subsidiary One                              
Ownership interest                 10.87% 10.87%          
ZK International | Subsidiary Two                              
Ownership interest                 100.00% 100.00%          
Common stock, no par value | $ / shares                         $ 0    
Shares issued | shares 30,000