Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 3,708	$ 28,484
Short-term investments, held -to-maturity	26,688	0
Accounts receivable, net of allowance for credit losses of $83 thousand and $20 thousand as of December 31, 2024 and December 31, 2023, respectively	4,312	3,948
Inventories, net	6,801	11,594
Prepaid expenses and other current assets	1,267	1,634
Total current assets	42,776	45,660
Property, plant and equipment, net	45,753	50,364
Operating right-of-use lease assets	15,767	16,472
Intangible assets, net	13,091	14,239
Other non-current assets	1,382	1,852
Total assets	118,769	128,587
Current liabilities:
Accounts payable	825	1,493
Accrued liabilities	4,541	5,579
Less: current portion	1,800	1,803
Current portion of long-term debt	4,045	0
Total current liabilities	11,211	8,875
Deferred tax liabilities	827	919
Other accrued liabilities	10	102
Long-term debt, net	9,443	13,251
Lease liabilities less current portion (14,884)	14,884	15,404
Total liabilities	36,375	38,551
Commitments and contingencies (Note 16)
Stockholders’ equity:
Preferred stock, $0.00001 par value, 10,000,000 shares authorized at December 31, 2024 and December 31, 2023, respectively, zero shares issued and outstanding at December 31, 2024 and December 31, 2023	0	0
Common stock, $0.00001 par value, 490,000,000 shares authorized at December 31, 2024 and December 31, 2023, respectively, 53,409,727 and 40,793,848 shares issued and outstanding at December 31, 2024 and December 31, 2023, respectively	1	0
Additional paid-in capital	200,924	181,822
Accumulated deficit	(118,531)	(91,786)
Total stockholders’ equity	82,394	90,036
Total liabilities and stockholders equity	$ 118,769	$ 128,587