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Leases (Tables)
 3 Months Ended
Mar. 31, 2023
Leases [Abstract]  
Components of Lease Cost and Supplemental Cash Flow Information
Components of the operating lease costs recognized in net loss were as follows (in thousands):
Three months ended March 31,
 20232022
Operating lease cost (income)
Sub-lease income$— $(25)
Lease cost117 132 
Operating lease cost, net$117 $107 
Schedule of Supplemental Balance Sheet Information Supplemental balance sheet information related to the Company’s operating leases as of March 31, 2023 and December 31, 2022 are as follows (in thousands):
 March 31, 2023December 31, 2022
Operating Leases
Operating lease right-of-use assets$1,111 $1,180 
Operating lease liabilities$1,180 $1,227 
Finance Leases
Property and equipment13 13 
Allowances for depreciation(13)(13)
Finance lease assets, net$— $— 
Schedule of Future Maturities of Operating Lease Liabilities Future minimum lease payments required under operating leases for each of the 12-month rolling periods below in effect at March 31, 2023 are as follows (in thousands):
Operating Leases
April 2023 to March 2024$385 
April 2024 to March 2025379 
April 2025 to March 2026387 
April 2026 to March 2027391 
April 2027 to March 202899 
Total future undiscounted lease payments1,641 
Less imputed interest(461)
Total lease obligations$1,180 
Supplemental Cash Flow Information Related to Leases Supplemental cash flow information related to leases for the three months ended March 31, 2023 and 2022, was as follows (in thousands):
Three months ended March 31,
 20232022
Supplemental cash flow information 
Cash paid, net, for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases$95 $136 
Financing cash flows from finance leases$— $1