Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Principles - Additional Information (Details)

v3.19.3
Summary of Significant Accounting Principles - Additional Information (Details)
 3 Months Ended 9 Months Ended
Mar. 31, 2019
USD ($)
Sep. 30, 2019
USD ($)
Unit
Jan. 01, 2019
USD ($)
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Number of reportable unit | Unit   1  
Goodwill impairment $ 0    
Indefinite-lived intangible assets impairment $ 0    
Operating lease right-of-use asset   $ 832,000  
Operating lease liability   $ 876,000  
ASU 2016-02      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Operating lease right-of-use asset     $ 1,174,000
Operating lease liability     $ 1,219,000
Leasehold Improvements      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Property, plant and equipment useful life   the shorter of the lease term or useful life  
Minimum | Furniture and Office Equipment      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Property, plant and equipment estimated useful lives   3 years  
Minimum | Manufacturing Equipment      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Property, plant and equipment estimated useful lives   6 years  
Maximum | Furniture and Office Equipment      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Property, plant and equipment estimated useful lives   7 years  
Maximum | Manufacturing Equipment      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Property, plant and equipment estimated useful lives   10 years