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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Cash Flows From Operating Activities:          
Net loss for the period $ (385) $ (5,007) $ (268) $ (9,035)  
Adjustments to reconcile net loss to net cash used in operating activities:          
Depreciation and amortization     451 403  
Share-based compensation     918 1,849  
Warranty provision     17 (44)  
Change in fair value of warranty liabilities (2,738) (0) (6,917) (0)  
Non-cash lease expense     143 53  
Provision for doubtful accounts     0 (4)  
Inventory obsolescence reserve     12 0  
Accounts receivable     (236) 884  
Inventories     (707) (2,545)  
Prepaid expenses and other current assets     261 53  
Accounts payable     25 508  
Operating lease liability     (29) (52)  
Customer deposits     (1,002) 3  
Accrued liabilities and other     39 7,149  
Warranty settlement     (34) (6)  
Deferred Revenue     41 8  
Changes in other non-current assets     37 0  
Net cash used in operating activities     (7,249) (776)  
Inventory obsolescence reserve     12 0  
Accounts receivable     (236) 884  
Inventories     (707) (2,545)  
Prepaid expenses and other current assets     261 53  
Accounts payable     25 508  
Operating lease liability     (29) (52)  
Customer deposits     (1,002) 3  
Accrued liabilities and other     39 7,149  
Warranty settlement     (34) (6)  
Deferred Revenue     41 8  
Changes in other non-current assets     37 0  
Net cash used in operating activities     (7,249) (776)  
Cash Flows From Investing Activities:          
Purchase of short-term investments     0 (2,645)  
Proceeds from maturities of short-term investments     5,000 10,000  
Capital expenditures for property and equipment     (13) (66)  
Proceeds from long-term deposits     0 31  
Net cash provided by investing activities     4,890 7,134  
Cash Flows From Financing Activities:          
Proceeds from exercise of stock options     588 0  
Dividends settled in Cash     (120) 0  
Net cash provided by financing activities     468 0  
Net (decrease) increase in cash and cash equivalents     (1,891) 6,358  
Cash and cash equivalents, beginning of period     3,955 5,330 $ 5,330
Cash and cash equivalents, end of period $ 2,064 $ 11,688 2,064 11,688 $ 3,955
us-gaap_SupplementalCashFlowElementsAbstract          
Change in unrealized gain on short-term investments     94 (94)  
Dividends on convertible preferred stock     700 0  
Dividends settled with common stock     140 0  
Patents and Trademarks [Member]          
Cash Flows From Investing Activities:          
Payments to acquire intangible assets     (97) (176)  
Intangibles Other than Patents and Trademarks [Member]          
Cash Flows From Investing Activities:          
Payments to acquire intangible assets     $ 0 $ (10)