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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |  |
Net loss | $ (2,138) | $ (3,010) | $ (6,722) | $ (4,461) |
Adjustments to reconcile net loss to net cash flows used in operating activities: |  |  |  |  |
Depreciation and amortization |  |  | 604 | 549 |
Amortization of operating lease right-of-use asset |  |  | 93 | 107 |
Amortization of finance lease right-of-use asset |  |  | 67 | 22 |
Amortization of deferred financing costs, debt discounts and debt premiums |  |  | 2 | 2 |
Gain on forgiveness of debt |  |  |  | (794) |
Gain on settlement of liability |  | (17) | (1) | (34) |
Stock-based compensation |  |  | 2,683 | 800 |
Value of stock issued in payment of services |  |  |  | 150 |
Provision for losses on doubtful accounts |  |  | 165 | 188 |
Warrant revaluation |  |  | (519) | 1,012 |
Derecognition of finance lease right-of-use asset |  |  |  | 29 |
Changes in operating assets and liabilities: |  |  |  |  |
Accounts receivable |  |  | (595) | 243 |
Inventories |  |  | (78) | (206) |
Other assets |  |  | 207 | 9 |
Accounts payable |  |  | 692 | 81 |
Operating lease liabilities |  |  | (90) | (110) |
Accrued expenses and other liabilities |  |  | (488) | (600) |
Net cash used in operating activities |  |  | (3,980) | (3,013) |
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |  |
Purchase of property and equipment |  |  | (106) | (321) |
Net cash used in investing activities |  |  | (106) | (321) |
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |  |
Principal payments on finance lease obligations |  |  | (95) | (37) |
Deposits on finance lease right-of-use assets |  |  |  | (35) |
Issuance of common stock, net of issuance costs |  |  |  | 16,207 |
Proceeds from exercise of stock options |  |  |  | 400 |
Principal payments on long-term debt |  |  | (14) | (26) |
Payments on common stock warrant liabilities |  |  |  | (130) |
Net cash flows (used in) provided by financing activities |  |  | (109) | 16,379 |
NET CHANGE IN CASH |  |  | (4,195) | 13,045 |
CASH AT BEGINNING OF PERIOD |  |  | 11,668 | 2,656 | $ 2,656
CASH AT END OF PERIOD | $ 7,473 | $ 15,701 | 7,473 | 15,701 | $ 11,668
SUPPLEMENTAL CASH FLOW INFORMATION |  |  |  |  |
Cash paid during the period for interest |  |  | 19 | 6 |
SUPPLEMENTAL DISCLOSURE OF CONSULTING SERVICES OR ANY OTHER NON-CASH COMMON STOCK RELATED ACTIVITY |  |  |  |  |
Purchases of equipment financed through accounts payable |  |  | 7 | 47 |
Operating lease right-of-use assets obtained in exchange for operating lease obligations |  |  | $ 92 | 0 |
Finance lease right-of-use assets obtained in exchange for finance lease obligations |  |  |  | $ 321 |

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