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Subsequent Events - Additional Information (Details) - USD ($)
Feb. 13, 2020
Jan. 21, 2020
Jan. 21, 2020
Sep. 05, 2019
Jan. 07, 2020
Dec. 31, 2019
Subsequent Event [Line Items]            
Restricted cash           $ 611,000
Secured Promissory Note | Private Placement            
Subsequent Event [Line Items]            
Secured note principal amount       $ 1,500,000    
Interest on the Note       11.00%    
Maturity date       Sep. 05, 2020    
Subsequent Event            
Subsequent Event [Line Items]            
Restricted cash         $ 122,000  
Subsequent Event | Secured Promissory Note | Private Placement            
Subsequent Event [Line Items]            
Secured note principal amount $ 1,000,000          
Interest on the Note 11.00%          
Maturity date Sep. 05, 2020          
Subsequent Event | Webster, Texas            
Subsequent Event [Line Items]            
Lease, expiration date   Apr. 30, 2021 Apr. 30, 2021      
Lessee, Operating Lease, Existence of Option to Extend [true false]   true true      
Renewal term   1 year 1 year