Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Details)

v3.19.2
Related Party Transactions - Additional Information (Details)
1 Months Ended 2 Months Ended 3 Months Ended 9 Months Ended
Mar. 06, 2019
USD ($)
PromissoryNote
$ / shares
Dec. 12, 2017
$ / shares
shares
Dec. 08, 2017
USD ($)
Dec. 31, 2017
shares
Nov. 30, 2017
shares
Dec. 12, 2017
USD ($)
$ / shares
shares
Jun. 30, 2019
USD ($)
$ / shares
shares
Jun. 30, 2018
USD ($)
$ / shares
Dec. 31, 2017
$ / shares
Jun. 30, 2019
USD ($)
$ / shares
shares
Jun. 30, 2018
USD ($)
$ / shares
shares
Jun. 10, 2019
USD ($)
Jun. 05, 2019
$ / shares
Sep. 30, 2018
USD ($)
$ / shares
Related Party Transaction [Line Items]                            
Units sold in offering   12,500,000                        
Share price per share | $ / shares               $ 0.005858     $ 0.005858      
Sale of stock price per unit | $ / shares   $ 10.00       $ 10.00 $ 10.00     $ 10.00       $ 10.00
Number of shares of common stock per unit   1       1                
Common stock, par value | $ / shares   $ 0.0001       $ 0.0001 $ 0.0001     $ 0.0001     $ 0.0001 $ 0.0001
Number of unsecured promissory notes issued | PromissoryNote 4                          
Aggregate principal amount | $ $ 1,437,500                          
Share price | $ / shares $ 0.10                          
Unsecured Promissory Notes                            
Related Party Transaction [Line Items]                            
Number of unsecured promissory notes issued | PromissoryNote 4                          
Aggregate principal amount | $ $ 1,437,500                          
Share price | $ / shares $ 0.10                          
Extension Notes                            
Related Party Transaction [Line Items]                            
Aggregate principal amount | $ $ 240,000                          
Rights                            
Related Party Transaction [Line Items]                            
Number of shares of common stock each holder receive   0.10       0.10                
Private Placement                            
Related Party Transaction [Line Items]                            
Share price per share | $ / shares               $ 10     $ 10      
Aggregate number of shares issued   489,500       489,500                
Sale of stock price per unit | $ / shares   $ 10.00       $ 10.00                
Number of shares of common stock per unit   1       1                
Common stock, par value | $ / shares   $ 0.0001       $ 0.0001                
Exercise price of warrants | $ / shares   $ 11.50       $ 11.50                
Private Placement | Rights                            
Related Party Transaction [Line Items]                            
Number of shares of common stock each holder receive   0.10       0.10                
Common Stock                            
Related Party Transaction [Line Items]                            
Units sold in offering                     4,267,500      
Number of shares of common stock each holder receive             0.10     0.10        
Common Stock | Private Placement                            
Related Party Transaction [Line Items]                            
Units sold in offering                     498,256      
Second Closing of Offering | Private Placement                            
Related Party Transaction [Line Items]                            
Aggregate number of shares issued   8,756                        
Warrants                            
Related Party Transaction [Line Items]                            
Number of shares of common stock each holder receive   0.75       0.75 4     4        
Exercise price of warrants | $ / shares   $ 11.50       $ 11.50 $ 11.50     $ 11.50        
Warrants | Private Placement                            
Related Party Transaction [Line Items]                            
Number of shares of common stock each holder receive   0.75       0.75                
Founders Shares                            
Related Party Transaction [Line Items]                            
Units sold in offering           4,267,500                
Proceeds from issuance of common stock | $           $ 25,000                
Share price per share | $ / shares   $ 0.005858       $ 0.005858                
Canceled shares for no consideration       738,750 738,750                  
Shares outstanding             3,528,750     3,528,750        
Holding period of shares for completion of initial business combination                 1 year          
Number of trading period for transfer of shares                 20 days          
Number of consecutive trading period for transfer of shares                 30 days          
Founders Shares | Extension Notes                            
Related Party Transaction [Line Items]                            
Aggregate principal amount | $                       $ 636,599    
Founders Shares | Minimum                            
Related Party Transaction [Line Items]                            
Period after initial business combination to allow transfer of shares                 150 days          
Founders Shares | Common Stock                            
Related Party Transaction [Line Items]                            
Stock price threshold that allows transfer of shares | $ / shares                 $ 12.00          
Sponsor | Administrative Support Agreement                            
Related Party Transaction [Line Items]                            
Payment for office space as service fees | $     $ 20,000                      
Services fees incurred | $             $ 60,000 $ 60,000   $ 180,000 $ 135,484      
Sponsor | Administrative Support Agreement | Accounts payable                            
Related Party Transaction [Line Items]                            
Accounts payable for service fees | $             $ 20,000     $ 20,000       $ 0