Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Additional Information (Details)

v3.19.2
Borrowings - Additional Information (Details)
1 Months Ended 3 Months Ended 6 Months Ended
Mar. 07, 2019
USD ($)
d
$ / shares
Sep. 30, 2016
USD ($)
Apr. 30, 2019
USD ($)
shares
Jun. 30, 2019
USD ($)
Mar. 31, 2019
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]                  
Payment of debt issuance costs             $ 1,253,000 $ 0  
Loss on debt extinguishment       $ (231,000)   $ 0 (1,045,000) 0  
Convertible debt and derivative liability       14,592,000     14,592,000   $ 0
Amortization of debt issuance costs and discount       373,000   $ 99,000 573,000 $ 212,000  
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        
Senior convertible notes       7,700,000     7,700,000    
Unamortized debt issuance cost       600,000     600,000    
Bifurcated embedded conversion option derivative liability       6,900,000     6,900,000    
Debt issuance costs         $ 600,000        
Gain (loss) on fair value adjustment of derivative liability       1,300,000     (2,100,000)    
Amortization of debt issuance costs and discount       400,000     500,000    
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 15,000,000     $ 15,000,000    
Fair value of the consideration issued     $ 3,000,000            
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%                
Senior Convertible Note Purchase Agreement | ASC 815                  
Debt Instrument [Line Items]                  
Derivative, fair value       $ 7,000,000     $ 7,000,000    
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%