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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
Cash flows from operating activities: |  |  |  |  |
Net loss | $ (1,019) | $ (257) | $ (1,851) | $ (2,224) |
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |  |  |  |
Depreciation and amortization expense |  |  | 449 | 1,593 |
Amortization of right-of-use assets |  |  | 217 | 300 |
Share-based compensation expense |  |  | 47 | 65 |
Change of inventory to net realizable value | 80 | 27 | 103 | 27 |
Gain recognized on Paycheck Protection Plan Loan forgiveness |  |  | 0 | (1,528) |
Changes in operating assets and liabilities: |  |  |  |  |
Receivables |  |  | (629) | 879 |
Legal settlement receivable |  |  | 55,000 | 0 |
Inventories |  |  | 657 | 730 |
Prepaid expenses and other assets |  |  | 3,536 | 1,097 |
Accounts payable |  |  | 1,151 | (3,341) |
Accrued liabilities |  |  | (204) | 33 |
Income taxes receivable |  |  | (5,310) | 0 |
Deferred product revenue |  |  | (11) | (11) |
Operating lease liabilities |  |  | (235) | (312) |
Net cash provided by (used in) operating activities |  |  | 52,920 | (2,692) |
Cash flows from investing activities: |  |  |  |  |
Purchase of property and equipment |  |  | (326) | (16) |
Purchase of intangibles |  |  | (79) | (58) |
Capitalized patent defense costs |  |  | 0 | (497) |
Proceeds from maturities and sales of marketable securities |  |  | 2,344 | 3,008 |
Purchases of marketable securities |  |  | (9,332) | 0 |
Net cash provided by (used in) investing activities |  |  | (7,393) | 2,437 |
Cash flows from financing activities: |  |  |  |  |
Dividend payment |  |  | (28,979) |  | $ 0
Net proceeds from equity-based compensation programs |  |  | 1 | 2 |
Paycheck Protection Program loan refund upon full forgiveness net of loan payments |  |  | 0 | 768 |
Principal payments of debt |  |  | (2,450) | (360) |
Net cash provided by (used in) financing activities |  |  | (31,428) | 410 |
Effect of exchange rate changes on cash and cash equivalents |  |  | 3 | (23) |
Net increase in cash and cash equivalents |  |  | 14,102 | 132 |
Cash and cash equivalents at the beginning of the period |  |  | 984 | 1,071 | 1,071
Cash and cash equivalents at the end of the period | $ 15,086 | $ 1,203 | 15,086 | 1,203 | $ 984
Supplemental cash flow activities: |  |  |  |  |
Cash paid for income taxes |  |  | 6,631 | 39 |
Cash paid for interest |  |  | $ 273 | $ 97 |

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