Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 240,310	$ 72,788
Short-term investments	19,891	0
Accounts receivable, net of allowance for doubtful accounts	48,235	34,780
Inventories, net	64,334	35,574
Prepaid expenses	8,395	5,834
Other current assets	2,314	1,349
Total Current Assets	383,479	150,325
Property, plant and equipment, net	719,444	583,922
Deposits on equipment	3,821	4,100
Operating lease right of use assets	5,516	6,537
Equity method investment	26,180	25,856
Other assets	27,057	13,670
Total Assets	1,165,497	784,410
CURRENT LIABILITIES:
Accounts payable	37,046	42,612
Accrued expenses	19,576	14,950
Current operating lease liabilities	1,478	1,384
Current portion of long-term debt	72,872	0
Total Current Liabilities	130,972	58,946
Long term operating lease liabilities	4,588	5,710
Total Liabilities	135,560	64,656
STOCKHOLDERS' EQUITY:
Common stock — voting, $0.001 par value, 200,000 shares authorized, 47,838 issued and 47,824 outstanding on September 30, 2022, and 43,449 issued and 43,435 outstanding on December 31, 2021	48	43
Additional paid-in capital	1,321,299	955,710
Accumulated deficit	(292,200)	(235,623)
Accumulated other comprehensive income (loss)	1,046	(120)
Treasury stock, at cost — 14 shares on September 30, 2022 and on December 31, 2021	(256)	(256)
Total Stockholders' Equity	1,029,937	719,754
Total Liabilities and Stockholders' Equity	$ 1,165,497	$ 784,410