Annual report pursuant to Section 13 and 15(d)

Debt and Interest (Narrative) (Details)

v3.21.1
Debt and Interest (Narrative) (Details)
1 Months Ended 12 Months Ended
Aug. 27, 2020
USD ($)
shares
Jan. 31, 2020
Sep. 30, 2019
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Jul. 18, 2019
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Sep. 30, 2017
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Sep. 18, 2017
Aug. 31, 2017
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Jun. 30, 2017
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May 31, 2017
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May 01, 2017
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Mar. 31, 2017
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Mar. 17, 2017
Sep. 14, 2016
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Feb. 13, 2014
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Aug. 31, 2020
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Dec. 31, 2020
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Dec. 31, 2019
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Dec. 31, 2017
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Debt Instrument [Line Items]                                    
Debt maturity date                               Sep. 14, 2018    
Total notes payable                               $ 51,677,000 $ 84,656,000  
Fair Value Adjustment of Warrants                               1,189,000 27,000  
Opus Credit Facility (2019 Notes) [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument face amount                                 9,000,000.0  
Maximum borrowing capacity                         $ 25,000,000.0          
Credit facility, amount outstanding                               $ 0 9,000,000.0  
Debt instrument, stated interest rate                         12.00%     12.00%    
Debt maturity date                         Sep. 14, 2018          
Repayments of debt                             $ 21,700,000 $ 9,000,000.0    
Total notes payable                                 9,000,000.0  
Warrant expiration term                         5 years          
Debt instrument conversion price per share | $ / shares                         $ 10.00          
Class of warrant or right value of securities called by warrants or rights                         1,500,000          
Number of shares of Common Stock equal to the product | shares                         1,000,000          
Credit facility agreement, number by which the notes are divided by                         25,000,000          
Exercise price of warrants | $ / shares                         $ 3.00          
Opus Credit Facility (2019 Notes) [Member] | DAK Capital Inc. [Member]                                    
Debt Instrument [Line Items]                                    
Total notes payable                                 3,800,000  
Opus Credit Facility (2019 Notes) [Member] | Chief Executive Officer (Dr. Rosenwald) [Member]                                    
Debt Instrument [Line Items]                                    
Repayments of debt       $ 500,000                            
Total notes payable                                 300,000  
Common shares issued (in shares) | shares       396,825                            
Share price per share | $ / shares       $ 1.26                            
Opus Credit Facility (2019 Notes) [Member] | Executive Vice President (Mr. Weiss) [Member]                                    
Debt Instrument [Line Items]                                    
Total notes payable                                 2,000,000.0  
Opus Credit Facility (2019 Notes) [Member] | Chief Executive Officer And Executive Vice President [Member]                                    
Debt Instrument [Line Items]                                    
Total notes payable                                 2,900,000  
Opus Credit Facility (2019 Notes) [Member] | Event of Default [Member]                                    
Debt Instrument [Line Items]                                    
Debt Instrument, Interest Rate, Effective Percentage                         14.00%          
IDB Note Payable [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument, stated interest rate                               2.25%    
Repayments of debt                               $ 14,858,000 0  
IDB Note Payable [Member] | Promissory Note [Member]                                    
Debt Instrument [Line Items]                                    
Maximum borrowing capacity                           $ 15,000,000.0        
Amount outstanding                           14,000,000.0   $ 0 $ 14,900,000  
Remaining borrowing capacity                           $ 100,000        
Debt instrument, stated interest rate                                 2.25%  
Basis spread on variable rate                           1.50%        
Collateral amount                           $ 15,000,000.0        
Debt maturity date   Aug. 01, 2021       Aug. 01, 2020                        
IDB Note Payable [Member] | Letter of Credit [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument, stated interest rate                               2.00%    
Letter of credit, amount outstanding                               $ 1,600,000    
2017 Subordinated Note Financing [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument face amount                     $ 3,250,000              
Maximum borrowing capacity                     $ 40,000,000.0              
Debt instrument, stated interest rate                     8.00%              
Repayments of debt     $ 28,400,000                         28,356,000 $ 0  
Total notes payable                               0 28,400,000  
Paid-in-kind interest rate                     7.00%              
Payment of debt issuance fees                               $ 93,000 118,000  
2017 Subordinated Note Financing [Member] | National Securities Corporation ("NSC") [Member]                                    
Debt Instrument [Line Items]                                    
Agency fees payment                                   $ 2,800,000
Repayments of debt                                   $ 28,400,000
Issuance of private placement, placement fees as a percentage of net proceeds                     10.00% 10.00%            
Additional shares | shares                                   716,180
Warrant expiration term                     5 years              
Warrants issued, percentage of aggregate principal amount of the Notes                     10.00% 10.00%            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares                                   716,180
2017 Subordinated Note Financing [Member] | May Increase Upon Sole Discretion [Member]                                    
Debt Instrument [Line Items]                                    
Maximum borrowing capacity                     $ 50,000,000.0              
2017 Subordinated Note Financing [Member] | Maximum [Member] | National Securities Corporation ("NSC") [Member]                                    
Debt Instrument [Line Items]                                    
Exercise price of warrants | $ / shares                                   $ 4.75
2017 Subordinated Note Financing [Member] | Minimum [Member] | National Securities Corporation ("NSC") [Member]                                    
Debt Instrument [Line Items]                                    
Exercise price of warrants | $ / shares                                   $ 3.61
2017 Subordinated Note Financing One [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument, stated interest rate                               8.00%    
2017 Subordinated Note Financing One [Member] | National Securities Corporation ("NSC") [Member]                                    
Debt Instrument [Line Items]                                    
Additional shares | shares                     87,946              
Proceed from closing of the 2017 Subordinated Note Financing                     $ 3,200,000              
Payment of debt issuance fees                     $ 300,000              
Exercise price of warrants | $ / shares                     $ 3.70              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares                     87,946              
2017 Subordinated Note Financing Two [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument, stated interest rate                               8.00%    
2017 Subordinated Note Financing Two [Member] | National Securities Corporation ("NSC") [Member]                                    
Debt Instrument [Line Items]                                    
Additional shares | shares                   234,438                
Proceed from closing of the 2017 Subordinated Note Financing                   $ 8,600,000                
Payment of debt issuance fees                   $ 900,000                
Exercise price of warrants | $ / shares                   $ 3.65                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares                   234,438                
2017 Subordinated Note Financing Three [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument, stated interest rate                               8.00%    
2017 Subordinated Note Financing Three [Member] | National Securities Corporation ("NSC") [Member]                                    
Debt Instrument [Line Items]                                    
Additional shares | shares                 147,806                  
Proceed from closing of the 2017 Subordinated Note Financing                 $ 5,300,000                  
Payment of debt issuance fees                 $ 500,000                  
Exercise price of warrants | $ / shares                 $ 3.61                  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares                 147,806                  
2017 Subordinated Note Financing Four [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument, stated interest rate                               8.00%    
2017 Subordinated Note Financing Four [Member] | National Securities Corporation ("NSC") [Member]                                    
Debt Instrument [Line Items]                                    
Additional shares | shares             63,526 38,315                    
Proceed from closing of the 2017 Subordinated Note Financing             $ 3,000,000.0 $ 1,800,000                    
Payment of debt issuance fees             $ 300,000 $ 200,000                    
Exercise price of warrants | $ / shares             $ 4.75 $ 4.75                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares             63,526 38,315                    
2017 Subordinated Note Financing Five [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument, stated interest rate                               8.00%    
2017 Subordinated Note Financing Six [Member] | National Securities Corporation ("NSC") [Member]                                    
Debt Instrument [Line Items]                                    
Additional shares | shares         144,149                          
Proceed from closing of the 2017 Subordinated Note Financing         $ 6,400,000                          
Payment of debt issuance fees         $ 600,000                          
Exercise price of warrants | $ / shares         $ 4.42                          
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares         144,149                          
Oaktree Note [Member]                                    
Debt Instrument [Line Items]                                    
Debt instrument face amount $ 60,000,000.0                                  
Debt instrument, stated interest rate 11.00%                             11.00%    
Debt maturity date Aug. 27, 2025                                  
Percentage of upfront commitment fee 3.00%                                  
Upfront Commitment Fee $ 1,800,000                                  
Debt issuance fees                               $ 8,700,000    
Agency fees payment 35,000                                  
Payment of expenses to third parties $ 2,500,000                                  
Additional shares | shares 1,749,450                                  
Payment of debt issuance fees                               $ 4,302,000 $ 0  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares 1,749,450                                  
Warrants, fair value $ 4,400,000