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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Cash flows from operating activities:      
Net loss $ (1,333) $ (2,821) $ (10,300)
Adjustments to reconcile net loss to net cash used in operating activities:      
Other income 0 (30)  
Depreciation 8 44  
Stock-based compensation 26 44  
Provision for doubtful accounts receivable 29 (9)  
Provision for slow-moving and obsolete inventories (23) 129  
Provision for warranties (40) (30)  
Amortization of loan discounts and origination fees 62 69  
Changes in operating assets and liabilities (sources / (uses) of cash):      
Accounts receivable (496) (83)  
Inventories 562 370  
Short-term deposits (23) 12  
Prepaid and other assets 6 20  
Accounts payable (27) 61  
Accrued and other liabilities 66 (211)  
Deferred revenue 0 (268)  
Total adjustments 150 118  
Net cash used in operating activities (1,183) (2,703) (6,700)
Cash flows from investing activities:      
Acquisitions of property and equipment 0 (35)  
Net cash used in investing activities 0 (35)  
Cash flows from financing activities (sources / (uses) of cash):      
Proceeds from the issuance of common stock and warrants 3,025 0  
Principal payments under finance lease obligations 0 (1)  
Net payments on proceeds from the credit line borrowings - Credit Facilities (1,093) 897  
Net cash provided by financing activities 1,432 281  
Net increase (decrease) in cash 249 (2,457)  
Cash beginning of period 52 2,682 2,682
Cash end of period 301 225 $ 52
2022 Streeterville Note      
Cash flows from financing activities (sources / (uses) of cash):      
Repayments of notes payable (500) 0  
2021 Streeterville Note      
Cash flows from financing activities (sources / (uses) of cash):      
Repayments of notes payable $ 0 $ (615)