Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating activities
Net income (loss)	$ 16,593,000	$ 17,220,000	$ (103,462,000)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	35,808,000	37,528,000	39,425,000
Stock-based compensation expense	16,999,000	15,989,000	17,545,000
Deferred taxes	(5,153,000)	(7,656,000)	(9,499,000)
Interest on finance lease obligations	33,000	1,055,000	0
Loss on impairment of goodwill	0	0	118,008,000
Loss on foreign currency translation	0	3,906,000	0
Loss on impairment of equipment	256,000	0	0
Impairments related to exit and closure of Germany and Japan businesses	2,333,000	0	2,842,000
Gain on disposal of property and equipment	(13,000)	(498,000)	(1,211,000)
Other	1,000	154,000	35,000
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	9,650,000	2,727,000	1,632,000
Inventories	1,258,000	112,000	(310,000)
Prepaid expenses and other	(560,000)	4,203,000	(2,081,000)
Income taxes	(691,000)	1,823,000	(2,681,000)
Accounts payable	480,000	(1,838,000)	1,375,000
Accrued liabilities and other	835,000	(1,451,000)	461,000
Net cash provided by operating activities	77,829,000	73,274,000	62,079,000
Investing activities
Purchases of property, equipment and other capital assets	(9,169,000)	(28,116,000)	(21,686,000)
Proceeds from sales of property, equipment and other capital assets	34,000	699,000	4,108,000
Purchases of other assets and investments	0	(1,000,000)	0
Purchases of marketable securities	(25,070,000)	0	(46,872,000)
Proceeds from sales of marketable securities	1,416,000	0	1,998,000
Proceeds from maturities of marketable securities	19,209,000	23,865,000	19,360,000
Net cash used in investing activities	(13,580,000)	(4,552,000)	(43,092,000)
Financing activities
Proceeds from issuance of common stock from equity plans	4,019,000	3,835,000	3,950,000
Purchases of shares withheld for tax obligations	(1,995,000)	(1,436,000)	(1,682,000)
Repurchases of common stock and other	(60,278,000)	(43,951,000)	(29,659,000)
Principal repayments of finance lease obligations	(296,000)	(306,000)	(531,000)
Net cash used in financing activities	(58,550,000)	(41,858,000)	(27,922,000)
Effect of exchange rate changes on cash and cash equivalents	(418,000)	368,000	(436,000)
Net increase (decrease) in cash and cash equivalents	5,281,000	27,232,000	(9,371,000)
Cash and cash equivalents, beginning of period	83,790,000	56,558,000	65,929,000
Cash and cash equivalents, end of period	89,071,000	83,790,000	56,558,000
Supplemental cash flow disclosure
Cash paid for interest	136,000	1,055,000	101,000
Cash paid for taxes	$ 13,913,000	$ 15,892,000	$ 19,160,000