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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Cash flows provided by (used in) operating activities: |  |
Net income | $ 30,664 | $ 12,484
Adjustments to reconcile net income to net cash and cash equivalents provided by operating activities: |  |
Depreciation of property and equipment | 140 | 99
Reduction in carrying value of right of use assets | 672 | 663
Stock-based compensation | 3,417 | 2,338
Net (gain) loss on investment in marketable securities | 7,884 | (479)
Net losses (gains) on derivative instruments | (4,831) | 1,364
Impairment of long-term deposits | 0 | 2,166
Foreign currency remeasurement losses | 145 | 635
Deferred income taxes | (5,101) | 531
Shares issued to an employee in lieu of cash compensation | 157 | 0
Other | 23 | 23
Changes in operating assets and liabilities: |  |
Accounts and other receivables | 735 | 248
Prepaid expenses and other current assets | 4,085 | (823)
Long-term deposits | 5,196 | 110
Other assets | 1,226 | 2,952
Accounts payable | 84 | (148)
Accrued compensation | 1,474 | (446)
Other current liabilities | (1,775) | 2,205
Deferred revenue | (4,130) | (4,982)
Other long-term liabilities | 81 | (1,491)
Net cash and cash equivalents provided by operating activities | 40,146 | 17,449
Cash flows provided by (used in) investing activities: |  |
Purchases of marketable securities and other investments | 151,306 | 109,408
Proceeds from sale or maturities of marketable securities and other investments | 119,714 | 17,156
Proceeds from sale of derivative instruments | 16,265 | 18,919
Payments for settlement of derivative instruments | (14,052) | (14,016)
Purchases of property and equipment | (30) | (335)
Proceeds from sale of fixed assets | 4 | 0
Net cash and cash equivalents used in investing activities | (29,405) | (87,684)
Cash flows provided by (used in) financing activities: |  |
Payment for purchases of treasury stock | (13,238) | 0
Shares withheld to cover payroll taxes | 229 | 0
Proceeds from issuance of common stock, net of issuance costs | 5 | 59,189
Proceeds from issuance of common stock under employee stock purchase plan | 51 | 150
Proceeds from stock options exercises | 0 | 2,864
Net cash and cash equivalents provided by (used in) financing activities | (13,411) | 62,203
Net decrease in cash and cash equivalents | (2,670) | (8,032)
Cash and cash equivalents: |  |
Beginning of period | 51,490 | 59,522
End of period | 48,820 | 51,490
Supplemental disclosure of cash flow information: |  |
Cash paid for income taxes | 1,408 | 88
Supplemental disclosure of non-cash investing, and financing activities: |  |
Dividends declared but not yet paid | 4,212 | 0
Leased assets obtained in exchange for new operating lease liabilities | $ 120 | $ 0

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