Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Details)

v3.19.1
Related Party Transactions - Additional Information (Details) - USD ($)
1 Months Ended 2 Months Ended 3 Months Ended 6 Months Ended
Dec. 12, 2017
Dec. 08, 2017
Dec. 31, 2017
Nov. 30, 2017
Dec. 12, 2017
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2019
Mar. 31, 2018
Sep. 30, 2018
Related Party Transaction [Line Items]                      
Units sold in offering 12,500,000                    
Share price per share             $ 0.005858     $ 0.005858  
Sale of stock price per unit $ 10.00       $ 10.00 $ 10.00     $ 10.00   $ 10.00
Number of shares of common stock per unit 1       1            
Common stock, par value $ 0.0001       $ 0.0001 $ 0.0001     $ 0.0001   $ 0.0001
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             $ 10     $ 10  
Aggregate number of shares issued 489,500       489,500            
Sale of stock price per unit $ 10.00       $ 10.00            
Number of shares of common stock per unit 1       1            
Common stock, par value $ 0.0001       $ 0.0001            
Exercise price of warrants $ 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             8,756     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 $ 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            
Founder 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 $ 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      
Founder Shares | Minimum                      
Related Party Transaction [Line Items]                      
Period after initial business combination to allow transfer of shares               150 days      
Founder Shares | Common Stock                      
Related Party Transaction [Line Items]                      
Stock price threshold that allows transfer of 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   $ 120,000 $ 120,000  
Sponsor | Administrative Support Agreement | Accounts payable                      
Related Party Transaction [Line Items]                      
Accounts payable for service fees           $ 0     $ 0   $ 0