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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021
Cash flows from operating activities: |  |
Net loss | $ (13,572) | $ (5,679)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 1,226 | 1,429
Bad debt expense | 125 | 449
Stock-based compensation | 83 | 33
Stock-based expense for services | 0 | 390
Forfeiture of unvested stock options | (84) | 0
Gain on extinguishment of liability | 0 | (227)
Casualty loss on inventory | 533 | 0
Loss on foreign currency remeasurement | 0 | 3
Impairment charges - property and equipment | 0 | 48
Impairment charges - right of use asset | 179 | 0
Impairment charges - goodwill | 7,367 | 0
Changes in operating assets and liabilities: |  |
Accounts receivable | 233 | 1,764
Inventory | 210 | (1,205)
Prepaid expenses and other current assets | (69) | (702)
Right of use asset | 235 | 250
Other assets | 87 | 7
Accounts payable | 66 | 205
Accrued expenses and other current liabilities | 17 | 408
Deferred revenue | (265) | (429)
Lease liabilities | (282) | (414)
Net cash used in operating activities | (3,911) | (3,670)
Cash flows from investing activities: |  |
Purchases of property and equipment | (11) | (17)
Proceeds from sale of equipment | 29 | 0
Net cash provided by (used in) investing activities | 18 | (17)
Cash flows from financing activities: |  |
Proceeds from stock issuance, net of issuance costs | 0 | 11,504
Net cash provided by financing activities | 0 | 11,504
(Decrease) increase in cash and restricted cash | (3,893) | 7,817
Cash and restricted cash at beginning of period | 9,000 | 5,277
Cash and restricted cash at end of period | 5,107 | 13,094
Reconciliation of cash and restricted cash |  |
Cash | 5,107 | 13,033
Restricted cash | 0 | 61
Total cash and restricted cash | 5,107 | 13,094
Cash paid during the period for interest | 6 | 2
Non-cash investing and financing activities: |  |
Accrued preferred stock dividends | 0 | 1
Inducement to convert Series A-2 Preferred Stock to common | 0 | 300
Common stock issued for conversion of Preferred Stock | $ 0 | $ 3

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