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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Cash flows from operating activities: |  |
Net income (loss) | $ 13,468 | $ (8,356)
Adjustments to reconcile net income (loss) from operations to net cash used in operations: |  |
Depreciation and amortization of intangible assets | 2,082 | 1,319
Deferred tax benefit | (80) | 8
Stock-based compensation | 1,540 | 3,812
Allowance for doubtful accounts | (63) | 75
Changes in operating assets and liabilities: |  |
Accounts receivable | 31,468 | 33,059
Inventories, net | 623 | (3,361)
Contract assets | (376) | 278
Accounts payable | (5,137) | (273)
Income taxes payable | 1,915 | (512)
Accrued expenses | (4,758) | (1,963)
Deferred compensation | (317) | (151)
Deferred revenue | (13,547) | (11,390)
Other assets and liabilities | 142 | 692
Net cash provided by operating activities | 26,960 | 13,237
Cash flows from investing activities: |  |
Maturities of short-term investments | 0 | 2,330
Additions to property and equipment | (3,045) | (3,069)
Additions to intangible assets | (35) | (7)
Cash paid for acquisition of business | 0 | (1,800)
Net cash used in investing activities | (3,080) | (2,546)
Cash flows from financing activities: |  |
Contingent payment related to acquisition | (200) | 0
Tax payments for restricted stock issuances | (1,595) | (1,098)
Net cash used in financing activities | (1,795) | (1,098)
Effect of exchange rate changes on cash | (734) | 569
Net increase in cash | 21,351 | 10,162
Cash, cash equivalents, and restricted cash, beginning of period | 43,530 | 97,374
Cash, cash equivalents, and restricted cash, end of period | $ 64,881 | $ 107,536

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