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Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Current assets    
Cash and cash equivalents $ 118,254 $ 125,225
Short-term marketable securities 30,993 35,437
Accounts receivable, net of allowance for doubtful accounts of $1,854 and $952 as of September 30, 2020 and December 31, 2019, respectively 61,250 57,450
Inventory 10,402 10,075
Income taxes receivable 16 0
Prepaid expenses and other current assets 10,198 8,232
Total current assets 231,113 236,419
Property and equipment, net 281,895 263,712
Goodwill 128,752 128,752
Other intangible assets, net 15,107 17,369
Long-term marketable securities 51,369 12,960
Operating lease assets 10,485 11,425
Finance lease assets 2,087 0
Other long-term assets 5,318 3,030
Total assets 726,126 673,667
Current liabilities    
Accounts payable 15,452 16,804
Accrued compensation 13,539 15,058
Accrued liabilities and other 19,047 11,057
Current operating lease liabilities 3,330 3,340
Current finance lease liabilities 325 0
Income taxes payable 0 1,322
Total current liabilities 51,693 47,581
Long-term operating lease liabilities 8,003 8,565
Long-term finance lease liabilities 1,758 0
Long-term deferred tax liabilities 32,849 26,283
Other long-term liabilities 6,002 5,448
Total liabilities 100,305 87,877
Shareholders' equity    
Preferred stock, $0.001 par value, authorized 10,000,000 shares; issued and outstanding 0 shares as of each of September 30, 2020 and December 31, 2019 0 0
Common stock, $0.001 par value, authorized 150,000,000 shares; issued and outstanding 26,753,545 and 26,786,459 shares as of September 30, 2020 and December 31, 2019, respectively 27 27
Additional paid-in capital 278,996 268,059
Retained earnings 353,322 324,722
Accumulated other comprehensive loss (6,524) (7,018)
Total shareholders' equity 625,821 585,790
Total liabilities and shareholders' equity $ 726,126 $ 673,667