Annual report pursuant to Section 13 and 15(d)

Notes Payable - Additional Information (Details)

v3.20.4
Notes Payable - Additional Information (Details)
12 Months Ended
Feb. 04, 2021
$ / shares
shares
Jul. 02, 2020
USD ($)
Jun. 30, 2020
USD ($)
May 01, 2020
USD ($)
shares
Apr. 16, 2020
USD ($)
d
$ / shares
Nov. 25, 2019
USD ($)
shares
Dec. 31, 2020
USD ($)
$ / shares
Dec. 31, 2019
USD ($)
$ / shares
Dec. 12, 2017
$ / shares
Debt Instrument [Line Items]                  
Notes payable due to related parties             $ 7,500,000 $ 9,411,000  
Long-term portion of notes payable due to related parties               7,500,000  
Notes, interest rate description             Interest on the Business Combination Convertible Notes will accrue at a fixed interest rate equal to the one-year US dollar LIBOR interest rate published in The Wall Street Journal on the Business Combination Date, plus a margin of one percent (1%) per annum. Interest will be due and payable annually on each of (1) the date which is the twelve-month anniversary of the Business Combination Date and (2) on the date which is the twenty-four-month anniversary of the Business Combination Date. All interest shall be computed on the basis of a 365-day year and the actual number of days elapsed.    
Contractual Interest Rate, Percentage             1.00%    
Outstanding principal balance             50.00%    
Number of business days after the Company receives such Payoff Financing Proceeds             10 days    
Percentage of remaining outstanding principal balance             100.00%    
Notes converted description             Business Combination Convertible Notes are not paid in full on or before the applicable Maturity Date, then at any time after the sixtieth business day after the Maturity Date, assuming payment in full has not been made prior to such date, the outstanding principal amount of these Notes, together with all accrued but unpaid interest on these Business Combination Convertible Notes, may be converted into shares of Company common stock, in part or in whole, at the option of the holder of these Business Combination Convertible Notes by providing written notice at least three business days prior to the date of conversion.    
Repayment of notes payable             $ 11,478,000    
Business combination transaction related costs           $ 13,100,000 2,700,000    
Common stock value             3,000 $ 2,000  
Conversion of common stock shares | shares           1,321,756      
Warrants issued | shares       0          
Long-term portion of notes payable             $ 2,700,000    
Common stock, par value | $ / shares             $ 0.0001 $ 0.0001 $ 0.0001
Cowen Investments and Chardan                  
Debt Instrument [Line Items]                  
Aggregate settlement of investment shares | shares       440,595          
Debt instrument face amount       $ 2,700,000          
Cowen Investments                  
Debt Instrument [Line Items]                  
Aggregate settlement of investment shares | shares       374,506          
Debt instrument face amount       $ 2,300,000     $ 2,300,000    
Conversion of common stock shares | shares       303,171          
Cowen Investments | Subsequent Event                  
Debt Instrument [Line Items]                  
Conversion of common stock shares | shares 303,171                
Common stock, par value | $ / shares $ 0.0001                
Chardan                  
Debt Instrument [Line Items]                  
Aggregate settlement of investment shares | shares       66,089          
Loss on settlement       $ (200,000)          
Debt instrument face amount       $ 405,000     $ 405,000    
Conversion of common stock shares | shares       53,501          
Cowen and Company, LLC and Chardan Capital markets, LLC                  
Debt Instrument [Line Items]                  
Business combination transaction related costs         $ 5,400,000        
Resale Registration Statement | Cowen and Company, LLC and Chardan Capital markets, LLC                  
Debt Instrument [Line Items]                  
Common stock value         $ 2,700,000        
Warrants exercise price | $ / shares         $ 0.01        
Beneficial ownership limitation percentage         4.99%        
Settlement shares, threshold percentage         15.00%        
Settlement shares, trailing days | d         10        
Maximum                  
Debt Instrument [Line Items]                  
Contractual Interest Rate, Percentage             7.60%    
Proceeds from equity financing             $ 50,000,000.0    
Cash received from payoff financing proceeds             $ 75,000,000.0    
Minimum                  
Debt Instrument [Line Items]                  
Contractual Interest Rate, Percentage             0.60%    
Other Current Liabilities | Cowen Investments                  
Debt Instrument [Line Items]                  
Accrued interest             $ 63,000    
Other Current Liabilities | Chardan                  
Debt Instrument [Line Items]                  
Accrued interest             14,000    
Business Combination Convertible Notes                  
Debt Instrument [Line Items]                  
Notes payable             7,500,000    
Notes payable due to related parties             $ 7,500,000    
Outstanding principal balance             50.00%    
Business Combination Convertible Notes | Other Current Liabilities                  
Debt Instrument [Line Items]                  
Accrued interest             $ 241,000    
Non-convertible Notes                  
Debt Instrument [Line Items]                  
Notes payable             $ 0    
Notes, interest rate description             The Non-convertible Notes accrued interest at a fixed interest rate equal to LIBOR, which interest rate was one and ninety-one hundredths percent (1.91%), plus a margin of one percent (1%) per annum. As used herein, “LIBOR” means the one-year US Dollar LIBOR interest rate published in The Wall Street Journal on the Business Combination Date. All interest was computed on the basis of a 365-day year and the actual number of days elapsed.    
Notes, LIBOR interest rate             1.91%    
Number of business days after the Company receives such Financing Proceeds             10 days    
Non-convertible Notes | London Interbank Offered Rate (LIBOR)                  
Debt Instrument [Line Items]                  
Contractual Interest Rate, Percentage             1.00%    
Non-convertible Notes | Maximum                  
Debt Instrument [Line Items]                  
Proceeds from equity financing             $ 11,500,000    
Convertible Notes | Resale Registration Statement | Cowen and Company, LLC and Chardan Capital markets, LLC                  
Debt Instrument [Line Items]                  
Convertible notes         $ 2,700,000        
Debt instrument, term         3 years        
Repaid earlier interest rate issuance term         1 year        
Repaid after interest rate issuance term         2 years        
Interest rate         5.00%        
Convertible notes, threshold percentage         5.00%        
Convertible notes, trailing days | d         10        
Extension Notes and Working Capital Notes                  
Debt Instrument [Line Items]                  
Notes payable             $ 0    
Notes, interest rate description             Interest on the Amended Extension Notes and Amended Working Capital Notes accrued at a fixed interest rate equal to the one-year U.S. dollar LIBOR interest rate published in The Wall Street Journal on the closing of the Business Combination, which was one and ninety-one hundredths percent (1.91%), plus a margin of one percent (1%) per annum. All interest was computed on the basis of a 365-day year and the actual number of days elapsed.    
Notes, LIBOR interest rate             1.91%    
Number of business days after the Company receives such Financing Proceeds             10 days    
Extension Notes and Working Capital Notes | London Interbank Offered Rate (LIBOR)                  
Debt Instrument [Line Items]                  
Contractual Interest Rate, Percentage             1.00%    
Extension Notes and Working Capital Notes | Maximum                  
Debt Instrument [Line Items]                  
Proceeds from equity financing             $ 11,500,000    
Esse Effe S.p.A                  
Debt Instrument [Line Items]                  
Prepayment amount transferred           $ 6,000,000.0      
Esse Effe S.p.A | Business Combination Convertible Notes                  
Debt Instrument [Line Items]                  
Notes payable             3,000,000.0    
Accrued interest             176,000    
Esse Effe S.p.A | Non-convertible Notes                  
Debt Instrument [Line Items]                  
Repayment of notes payable   $ 6,000,000.0              
Accrued interest paid   $ 105,000              
Maya                  
Debt Instrument [Line Items]                  
Prepayment amount transferred           $ 1,500,000      
Maya | Business Combination Convertible Notes                  
Debt Instrument [Line Items]                  
Notes payable             750,000    
Accrued interest             $ 44,000    
Maya | Non-convertible Notes                  
Debt Instrument [Line Items]                  
Repayment of notes payable     $ 1,500,000            
Accrued interest paid     $ 26,000