Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Details)

v3.20.1
Subsequent Events - Additional Information (Details) - Subsequent Event - USD ($)
1 Months Ended
Apr. 09, 2020
Apr. 30, 2020
New Jersey    
Subsequent Event [Line Items]    
Proceeds from sale of net operating loss and research and development tax credit carryforwards   $ 3,100,000
NOLs and Research and Development Credits    
Subsequent Event [Line Items]    
Income tax benefit   $ 3,100,000
Maximum | Nasdaq Global Market    
Subsequent Event [Line Items]    
Common stock, closing bid price per share   $ 1.00
Common Stock Purchase Agreement | Aspire Capital | Maximum    
Subsequent Event [Line Items]    
Sale of common stock at sole discretion   $ 20,000,000
6.0% Senior Convertible Notes due 2026 | April 2020 Note Purchase Agreement    
Subsequent Event [Line Items]    
Date of issuance and sale of notes Apr. 09, 2020  
Face amount $ 10,000,000  
Interest rate 6.00%