Annual report pursuant to Section 13 and 15(d)

Borrowings - Additional Information (Details)

v3.20.1
Borrowings - Additional Information (Details)
1 Months Ended 12 Months Ended
Mar. 07, 2019
USD ($)
d
$ / shares
Sep. 30, 2016
USD ($)
Apr. 30, 2019
USD ($)
shares
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]          
Payment of debt issuance costs       $ 1,253,000 $ 0
Loss on debt extinguishment       (1,045,000) 0
Convertible debt and derivative liability       11,522,000 0
Amortization of debt issuance costs and discount       1,171,000 $ 428,000
Senior Convertible Note Purchase Agreement          
Debt Instrument [Line Items]          
Face amount $ 16,000,000        
Date of issuance and sale of notes Mar. 07, 2019        
Proceeds from debt, net of issuance costs $ 14,700,000        
Payment of debt issuance costs $ 1,300,000        
Loss on debt extinguishment     $ (200,000) (800,000)  
Reacquisition price of outstanding debt       15,900,000  
Carrying value of debt obligation       15,100,000  
Conversion of convertible note, amount     $ 2,000,000    
Conversion of convertible note exchanged for shares | shares     1,626,000    
Fair value of convertible debt and derivative liability     $ 2,800,000 11,700,000  
Fair value of the consideration issued     $ 3,000,000    
Senior convertible notes       8,300,000  
Unamortized debt issuance cost       500,000  
Bifurcated embedded conversion option derivative liability       3,200,000  
Derivative, fair value       7,000,000  
Debt issuance costs       600,000  
Gain on fair value adjustment of derivative liability       1,600,000  
Amortization of debt issuance costs and discount       $ 1,100,000  
Purchase price as percentage of principal amount 100.00%        
Interest rate 6.00%        
Payment terms       The Notes bear interest at a rate of 6.0% per annum payable semiannually in arrears on March 15 and September 15 of each year, beginning September 15, 2019. The Notes will mature on March 15, 2025, unless earlier converted, redeemed or repurchased.  
Notes maturity date Mar. 15, 2025        
Notes maturity description       The Notes will mature on March 15, 2025, unless earlier converted, redeemed or repurchased.  
Conversion terms       holder of the Notes may convert their Notes at their option at any time prior to the close of business on the business day immediately preceding March 15, 2025 into shares of the Company’s common stock.  
Conversion rate, number of shares to be issued per $1000 of principal (in shares) 739.0983        
Principal amount of notes used as the denominator for conversion into notes $ 1,000        
Initial conversion price of notes | $ / shares $ 1.35        
Conversion rate, number of shares to be issued per $1000 of principal (in shares) after adjustment to certain events 813        
Principal amount of notes used as the denominator for conversion into notes after adjustment of certain events $ 1,000        
Convertible notes, redemption start date Mar. 15, 2022        
Convertible notes, threshold percentage of stock price trigger 130.00%        
Convertible notes, threshold trading days | d 20        
Convertible notes, threshold consecutive trading days | d 30        
Redemption price as percentage of the principal amount 100.00%        
Redemption price as percentage of the principal amount subject to certain exceptions 100.00%        
Secured Debt | Term Loan          
Debt Instrument [Line Items]          
Loan agreement term   48 months      
Face amount   $ 15,000,000      
Secured Debt | Term Loan | LIBOR          
Debt Instrument [Line Items]          
Basis spread on variable rate (as a percent)   8.49%