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v3.23.1

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Cash flows from operating activities: |  |
Net income (loss) | $ 20,556 | $ (7,694)
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |
Depreciation and amortization expense | 2,970 | 2,867
Amortization of right of use of assets | 597 | 611
Share-based compensation expense | 113 | 136
Change of inventory to net realizable value | 120 | 850
Loss on disposal of assets | 146 | 0
Gain recognized on Paycheck Protection Plan Loan forgiveness | (1,528) | 0
Gain on legal settlement proceeds, net of capitalized legal costs less amortization | (33,623) | 0
Changes in operating assets and liabilities: |  |
Receivables | 1,388 | 203
Inventories | 1,812 | 603
Prepaid expenses and other assets | 684 | (2,485)
Accounts payable | (4,104) | 1,438
Accrued liabilities | 485 | 166
Income taxes receivable | 6,466 | (366)
Deferred product revenue | 9 | (69)
Operating lease liabilities | (623) | (631)
Other long-term liabilities | 353 | (23)
Net cash used in operating activities | (4,179) | (4,394)
Cash flows from investing activities: |  |
Capitalized patent defense costs | (737) | (7,836)
Purchase of property and equipment | (51) | (221)
Purchase of intangibles | (137) | (290)
Proceeds from maturities and sales of marketable securities | 3,010 | 4,004
Purchase of marketable securities | 0 | (4,164)
Net cash used in investing activities | 2,085 | (8,507)
Cash flows from financing activities: |  |
Gross proceeds from issuance of common stock and warrants | 0 | 10,000
Costs of issuance of common stock and warrants | 0 | (712)
Proceeds from issuance of short-term notes | 2,000 | 2,000
Proceeds from Paycheck Protection Program loan | 767 | 0
Principal payments of long-term debt | (720) | (1,098)
Proceeds from equity-based compensation programs | 4 | 15
Net cash provided by financing activities | 2,051 | 10,205
Effect of exchange rate changes on cash and cash equivalents | (44) | (36)
Net increase (decrease) in cash and cash equivalents | (87) | (2,732)
Cash and cash equivalents at the beginning of the year | 1,071 | 3,803
Cash and cash equivalents at the end of the year | 984 | 1,071
Supplemental disclosure of cash flow information: |  |
Cash paid for income taxes | 88 | 107
Cash paid for interest | 226 | 296
Supplemental disclosure of non-cash investing and financing activities |  |
Right-of-use assets obtained in exchange for lease obligations | 107 | 212
Issue of common stock in consideration of cancellation of debt | $ 2,000 | $ 0

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