Annual report pursuant to Section 13 and 15(d)

Notes, Warrants and Other Obligations (Details)

v3.21.1
Notes, Warrants and Other Obligations (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Jun. 27, 2019
Jan. 31, 2019
Jan. 28, 2019
Feb. 21, 2018
Sep. 30, 2019
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]              
Cash released           $ 255
Conversion of notes into shares 1,813,500            
Fair value of conversion of shares             10,226
Gain on extinguishment of debt           854
Restricted Stock [Member]              
Debt Instrument [Line Items]              
Stock issued during period   150,000          
Senior Secured Convertible Promissory Notes [Member]              
Debt Instrument [Line Items]              
Fair value of notes     $ 6,300        
Upfront costs and fees             $ 400
Conversion of notes into shares             1,813,500
Fair value of conversion of shares         $ 3,900   $ 10,200
Senior Secured Convertible Promissory Notes [Member] | Restricted Stock [Member]              
Debt Instrument [Line Items]              
Stock issued during period             150,000
Senior Secured Convertible Promissory Notes [Member] | Investors [Member]              
Debt Instrument [Line Items]              
Conversion price     $ 2.00        
Percentage of lowest volume-weighted adjusted price of shares     80.00%        
Exercise price     $ 1.94        
Debt instrument face amount   $ 3,400 $ 3,400        
Percentage amount of shares issuable upon full conversion of Notes     300.00%        
Warrant issued   1,908,144 1,908,144        
Senior Secured Convertible Promissory Notes [Member] | Investors [Member] | Restricted Stock [Member]              
Debt Instrument [Line Items]              
Stock issued during period     150,000        
Senior Secured Convertible Promissory Notes [Member] | Investors [Member] | Maximum [Member]              
Debt Instrument [Line Items]              
Percentage of number of shares issuable     19.99%        
Percentage of beneficial ownership of shares     9.99%        
Senior Secured Convertible Promissory Notes [Member] | Investors [Member] | Minimum [Member]              
Debt Instrument [Line Items]              
Percentage of beneficial ownership of shares     4.99%        
Senior Secured Convertible Promissory Notes [Member] | Private Financing [Member]              
Debt Instrument [Line Items]              
Debt instrument face amount     $ 3,000        
BMSS Purchase Agreement [Member]              
Debt Instrument [Line Items]              
Debt instrument face amount $ 1,300            
Purchase cost       $ 8,500      
Gain on extinguishment of debt 400            
One time settlement amount $ 1,000            
Settlement with certain creditors [Member]              
Debt Instrument [Line Items]              
Gain on extinguishment of debt             $ 500
Value of liabilities settled with certain creditors             2,100
Cash payment made to settle liabilities with certain creditors             $ 1,600