Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Components (Details)

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Balance Sheet Components (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Balance Sheet Components          
Depreciation and amortization expense $ 31,000 $ 20,000 $ 91,000 $ 59,000  
Property and equipment, gross 1,145,000   1,145,000   $ 1,120,000
Accumulated depreciation 947,000   947,000   $ 958,000
Capital lease          
Balance Sheet Components          
Property and equipment, gross 72,000   72,000    
Accumulated depreciation $ 50,000   $ 50,000