Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities
Net income	$ 21,713	$ 14,138
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,766	4,677
Stock-based compensation	3,219	2,602
Provision for inventory write-downs	1,260	834
Provision for doubtful accounts	400	(27)
Fair value adjustment to contingent consideration obligations	46	48
Loss on divestitures	0	485
Foreign currency effect on net income	678	1
Changes in operating assets and liabilities:
Accounts receivable	(6,493)	(4,239)
Inventory and other deferred costs	(7,287)	(4,272)
Prepaid expenses and other assets	729	922
Accounts payable and other liabilities	(4,335)	(987)
Net cash provided by operating activities	14,696	14,182
Investing activities
Purchases of property and equipment and other assets	(3,248)	(4,933)
Purchases of short-term marketable securities	(10,116)	(7,239)
Payments related to acquisitions	0	(431)
Net cash used in investing activities	(13,364)	(12,603)
Financing activities
Proceeds from stock option exercises	4,716	5,073
Purchase of treasury stock for net settlement of equity awards	(365)	(181)
Common stock cash dividend paid	(7,182)	(6,215)
Net cash used in financing activities	(2,831)	(1,323)
Effect of exchange rate changes on cash and cash equivalents	(502)	98
Net increase (decrease) in cash and cash equivalents	(2,001)	354
Cash and cash equivalents at beginning of period	24,269	19,134
Cash and cash equivalents at end of period	$ 22,268	$ 19,488