Quarterly report pursuant to Section 13 or 15(d)

Business and Summary of Significant Accounting Policies - Schedule of Recently Adopted Accounting Pronouncement (Details)

v3.22.2.2
Business and Summary of Significant Accounting Policies - Schedule of Recently Adopted Accounting Pronouncement (Details) - USD ($)
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Jan. 01, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Business and Summary of Significant Accounting Policies                  
Operating lease, liability $ 216,000                
Property, plant and equipment, net 198,000       $ 162,000 [1]        
Total assets 11,570,000       19,391,000 [1]        
Operating lease liabilities, current 142,000                
Total liabilities 6,218,000       3,014,000 [1]        
Accumulated deficit (224,831,000)       (212,203,000) [1]        
Stockholders' equity 5,352,000 $ 9,384,000 $ 12,986,000   16,377,000 [1] $ 18,996,000 $ 11,633,000 $ 9,920,000 $ 7,316,000
Total liabilities and stockholders' equity $ 11,570,000       19,391,000 [1]        
Cumulative Effect, Period of Adoption, Adjustment                  
Business and Summary of Significant Accounting Policies                  
Stockholders' equity     $ 33,000            
Accounting Standards Update 2016-02 Leases                  
Business and Summary of Significant Accounting Policies                  
Operating lease right-of-use asset       $ 212,000          
Operating lease, liability       327,000          
Property, plant and equipment, net         162,000        
Total assets         19,391,000        
Deferred rent credit         58,000        
Total liabilities         3,014,000        
Accumulated deficit         (212,203,000)        
Stockholders' equity         16,377,000        
Total liabilities and stockholders' equity         $ 19,391,000        
Accounting Standards Update 2016-02 Leases | Cumulative Effect, Period of Adoption, Adjusted Balance                  
Business and Summary of Significant Accounting Policies                  
Operating lease right-of-use asset       212,000          
Property, plant and equipment, net       252,000          
Total assets       19,693,000          
Operating lease liabilities, current       148,000          
Operating lease liabilities, non-current       179,000          
Total liabilities       3,283,000          
Accumulated deficit       (212,170,000)          
Stockholders' equity       16,410,000          
Total liabilities and stockholders' equity       19,693,000          
Accounting Standards Update 2016-02 Leases | Cumulative Effect, Period of Adoption, Adjustment                  
Business and Summary of Significant Accounting Policies                  
Operating lease right-of-use asset       212,000          
Property, plant and equipment, net       90,000          
Total assets       302,000          
Operating lease liabilities, current       148,000          
Operating lease liabilities, non-current       179,000          
Deferred rent credit       (58,000)          
Total liabilities       269,000          
Accumulated deficit       33,000          
Stockholders' equity       33,000          
Total liabilities and stockholders' equity       $ 302,000          
[1] The condensed consolidated balance sheet as of December 31, 2021 was derived from the audited consolidated balance sheet as of that date.