CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Cash and cash equivalents	$ 37,880	$ 31,584
Short-term investments	0	28,343
Accounts receivable, net of allowance of bad debt	581	758
Prepaid expenses and other current assets	5,224	3,612
Property and equipment, net	81,159	87,982
Other non-current assets	1,002	1,069
Accrued expenses	13,460	13,555
Income taxes payable	0	65
Long-term debt, current portion	12,941	1,179
Other current liabilities	129	968
Debt discount non current	78	141
Other non-current liabilities	$ 2,724	$ 2,736
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	20,122,505	20,059,505
Common stock, shares outstanding (in shares)	19,962,131	20,036,505
Treasury stock, par value (in dollars per share)	$ 0.001	$ 0.001
Treasury stock, shares (in shares)	(160,374)	(23,000)
VIE, Primary Beneficiary
Cash and cash equivalents	$ 1,488	$ 1,703
Short-term investments	0	11,128
Accounts receivable, net of allowance of bad debt	4	0
Prepaid expenses and other current assets	314	27
Property and equipment, net	41,758	42,972
Other non-current assets	68	34
Accounts payable	97	16
Accrued expenses	535	489
Income taxes payable	0	3
Long-term debt, current portion	12,941	1,179
Other current liabilities	49	916
Debt discount non current	78	141
Long-term debt, net of current portion	22,862	47,279
Other non-current liabilities	$ 1,224	$ 1,198