Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 59,361	$ 65,929
Short-term marketable securities	25,253	11,580
Accounts receivable, net of allowance for doubtful accounts of $1,821 and $1,948 as of September 30, 2022, and December 31, 2021, respectively	80,611	80,051
Inventory	14,617	13,161
Income taxes receivable	763	1,321
Prepaid expenses and other current assets	11,752	11,450
Total current assets	192,357	183,492
Property and equipment, net	259,856	280,346
Goodwill	383,558	400,610
Other intangible assets, net	31,907	37,998
Long-term marketable securities	29,257	14,340
Operating lease assets	4,293	5,578
Finance lease assets	1,524	1,898
Other long-term assets	4,186	4,320
Total assets	906,938	928,582
Current liabilities
Accounts payable	16,893	25,364
Accrued compensation	15,087	13,704
Accrued liabilities and other	25,478	11,980
Current operating lease liabilities	1,773	3,298
Current finance lease liabilities	1,484	550
Income taxes payable	5	0
Total current liabilities	60,720	54,896
Long-term operating lease liabilities	2,477	2,245
Long-term finance lease liabilities	0	1,351
Long-term deferred tax liabilities	26,864	35,892
Other long-term liabilities	6,031	5,705
Total liabilities	96,092	100,089
Shareholders' equity
Preferred stock, $0.001 par value, authorized 10,000,000 shares; issued and outstanding 0 shares as of each of September 30, 2022, and December 31, 2021	0	0
Common stock, $0.001 par value, authorized 150,000,000 shares; issued and outstanding 27,326,750 and 27,465,945 shares as of September 30, 2022, and December 31, 2021, respectively	28	28
Additional paid-in capital	477,107	468,548
Retained earnings	380,735	376,734
Accumulated other comprehensive loss	(47,024)	(16,817)
Total shareholders' equity	810,846	828,493
Total liabilities and shareholders' equity	$ 906,938	$ 928,582