Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Cash Flows

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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Operating activities:    
Net loss $ (4,620) $ (3,670)
Adjustments to reconcile net loss to net cash used in operating activities    
Depreciation 131 126
Changes in allowance for doubtful accounts (9) 31
Loss (gain) on revaluation of warrant liabilities 100 (11)
Stock-based compensation expense 499 356
Common stock contribution to 401(k) plan 64 52
Unrealized loss on foreign currency transactions 254 503
Changes in operating assets and liabilities:    
Accounts receivable 1,297 917
Inventories (562) (228)
Prepaid expenses, right-of-use assets, and other assets (203) (78)
Accounts payable (166) 151
Accrued, lease and other liabilities (503) 16
Deferred revenues (488) (165)
Net cash used in operating activities (4,206) (2,000)
Financing activities:    
Proceeds from issuance of common stock and warrants, net 0 37,295
Proceeds from exercise of warrants 0 1,417
Net cash provided by financing activities 0 38,712
Effect of exchange rate changes on cash (24) (35)
Net (decrease) increase in cash (4,230) 36,677
Cash at beginning of period 40,406 12,862
Cash at end of period 36,176 49,539
Supplemental disclosure of cash flow activities    
Cash paid for interest 27 23
Supplemental disclosure of non-cash activities    
Fair value of warrants issued upon equity financing 0 1,936
Reclassification of warrant liability to equity upon exercise of warrants 0 2,461
Transfer of inventory to (from) property and equipment 29 53
Share issuance for common stock contribution to 401(k) plan $ 176 $ 152