Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current Assets
Cash and cash equivalents	$ 24,685	$ 34,656
Restricted cash	10,902	6,480
Accounts receivable - trade, net of allowance of $28 and $30, respectively	61,175	47,944
Notes receivable	339	8,148
Inventories	79,679	92,516
Prepaid income tax	0	1
Prepaid expenses and other current assets	6,384	4,334
Total current assets	183,164	194,079
Property, plant and equipment, net	210,184	243,035
Land use rights, net	5,238	5,856
Operating right of use asset	5,566	7,078
Financing right of use asset	26	57
Intangible assets, net	3,699	3,836
Other assets, net	386	518
TOTAL ASSETS	408,263	454,459
Current liabilities
Accounts payable	47,845	34,402
Bank acceptance payable	12,337	8,198
Accrued liabilities	17,222	15,587
Deferred revenue	3,000	0
Current lease liability - operating	1,041	1,062
Current lease liability - financing	63	19
Current portion of notes payable and long-term debt	57,074	49,689
Total current liabilities	138,582	108,957
Convertible senior notes	79,506	78,680
Non-current lease liability - operating	5,505	7,189
Non-current lease liability - financing	0	63
Notes payable and long-term debt, less current portion	0	5,000
TOTAL LIABILITIES	223,593	199,889
Stockholders' equity:
Preferred Stock; 5,000 shares authorized at $0.001 par value; no shares issued and outstanding at December 31, 2022 and December 31, 2021, respectively	0	0
Common Stock; 45,000 shares authorized at $0.001 par value; 28,622 and 27,323 shares issued and outstanding at December 31, 2022 and December 31, 2021, respectively	29	27
Additional paid-in capital	391,526	381,143
Accumulated other comprehensive income	2,183	16,071
Accumulated deficit	(209,068)	(142,671)
TOTAL STOCKHOLDERS' EQUITY	184,670	254,570
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 408,263	$ 454,459