Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.2.2
Business and Summary of Significant Accounting Policies - Recently Adopted Accounting Pronouncement (Details) - USD ($)
Jun. 30, 2022
Mar. 31, 2022
Jan. 01, 2022
Dec. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Operating lease right-of-use asset $ 166,000   $ 212,000 $ 0 [1]      
Operating Lease, Liability 253,000            
Property, Plant and Equipment, Net 220,000     162,000 [1]      
Assets 12,205,000     19,391,000 [1]      
Operating Lease, Liability, Current 144,000   148,000        
Operating Lease, Liability, Noncurrent 109,000   179,000        
Liabilities 2,821,000     3,014,000 [1]      
Retained Earnings (Accumulated Deficit) (220,182,000)     (212,203,000) [1]      
Stockholders' Equity Attributable to Parent 9,384,000 $ 12,986,000   16,377,000 [1] $ 11,633,000 $ 9,920,000 $ 7,316,000
Liabilities and Equity 12,205,000     19,391,000 [1]      
Cumulative Effect, Period of Adoption, Adjustment              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Stockholders' Equity Attributable to Parent   $ 33,000          
Accounting Standards Update 2016-02 Leases              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Operating lease right-of-use asset     212,000        
Operating Lease, Liability     327,000        
Property, Plant and Equipment, Net       162,000      
Assets       19,391,000      
Deferred Rent Credit       58,000      
Liabilities       3,014,000      
Retained Earnings (Accumulated Deficit)       (212,203,000)      
Stockholders' Equity Attributable to Parent       16,377,000      
Liabilities and Equity       $ 19,391,000      
Accounting Standards Update 2016-02 Leases | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Operating lease right-of-use asset     212,000        
Property, Plant and Equipment, Net     252,000        
Assets     19,693,000        
Operating Lease, Liability, Current     148,000        
Operating Lease, Liability, Noncurrent     179,000        
Liabilities     3,283,000        
Retained Earnings (Accumulated Deficit)     (212,170,000)        
Stockholders' Equity Attributable to Parent     16,410,000        
Liabilities and Equity     19,693,000        
Accounting Standards Update 2016-02 Leases | Cumulative Effect, Period of Adoption, Adjustment              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Operating lease right-of-use asset     212,000        
Property, Plant and Equipment, Net 90,000   90,000        
Assets     302,000        
Operating Lease, Liability, Current     148,000        
Operating Lease, Liability, Noncurrent     179,000        
Deferred Rent Credit $ 58,000   (58,000)        
Liabilities     269,000        
Retained Earnings (Accumulated Deficit)     33,000        
Stockholders' Equity Attributable to Parent     33,000        
Liabilities and 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.