Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands		Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents		$ 129,126	$ 179,894
Short-term investment securities		122,744	131,106
Accounts receivable, net		231,516	129,185
Inventories		155,202	110,458
Other current assets		25,374	15,716
Total current assets		663,962	566,359
Restricted cash		1,316	1,298
Long-term investment securities		28,590	808
Right of use assets		6,718	7,151
Other noncurrent assets	[1]	2,027	2,074
Total assets		702,613	577,690
Current liabilities:
Accounts payable and accrued expenses		134,021	58,296
Other current liabilities	[1]	2,256	4,627
Lease liability – current portion		1,091	1,157
Deferred revenue - current portion	[1]	23,911	11,414
Accrued compensation		10,610	15,185
Total current liabilities		171,889	90,679
Deferred revenue, non-current portion		1,667	12,085
Loan payable – non-current		245,037	244,429
Lease liability – non-current		7,588	8,133
Total liabilities		426,181	355,326
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.001 par value per share (190,000,000 and 175,000,000 shares authorized, 158,786,335 and 156,204,159 shares issued, 158,025,237 and 155,836,256 shares outstanding at June 30, 2025 and December 31, 2024, respectively)		159	156
Additional paid-in capital		1,794,212	1,760,396
Treasury stock, at cost, 761,098 and 367,903 shares at June 30, 2025 and December 31, 2024, respectively		(21,992)	(8,994)
Accumulated deficit		(1,495,947)	(1,529,194)
Total stockholders’ equity		276,432	222,364
Total liabilities and stockholders’ equity		$ 702,613	$ 577,690

[1] Amounts as of December 31, 2023 have been reclassified to conform to current period presentation.