CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Cash and cash equivalents	$ 31,584	$ 23,076
Short-term investments	28,343	26,343
Allowance for bad debt	758	392
Prepaid expenses and other current assets	3,612	6,219
Property and equipment, net	87,982	95,226
Other non-current assets	1,069	619
Accrued expenses	13,555	10,576
Income taxes payable	65	0
Deferred revenue	742	951
Long-term debt, current portion	1,179	1,122
Other current liabilities	968	3,200
Debt discount	141	203
Other non-current liabilities	$ 2,736	$ 26
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)	20,059,505	19,988,482
Common stock, shares outstanding (in shares)	20,036,505	19,965,482
Treasury stock, par value (in dollars per share)	$ 0.001	$ 0.001
Treasury stock, shares (in shares)	23,000	23,000
VIE, Primary Beneficiary
Cash and cash equivalents	$ 1,703	$ 13,566
Short-term investments	11,128	0
Prepaid expenses and other current assets	27	82
Property and equipment, net	42,972	44,185
Other non-current assets	34	53
Accounts payable	16	63
Accrued expenses	489	591
Income taxes payable	3	0
Deferred revenue	0	116
Long-term debt, current portion	1,179	1,122
Other current liabilities	916	1,302
Debt discount	141	203
Long-term debt, net of current portion	47,279	48,396
Other non-current liabilities	$ 1,198	$ 0