CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Depreciation and amortization	$ 8,132	$ 7,980
Amortization of loan fees	(80)	(69)
Accrued interest on certificates of deposit (including $40 and $49 associated with variable interest entity for the nine months ended September 30, 2025 and 2024, respectively)	(40)	(199)
Government grant income (including $24 and $0 associated with variable interest entity for the nine months ended September 30, 2025 and 2024, respectively)	(53)	0
Prepaid expenses and other current assets	741	(1,401)
Other non-current assets (including $21 and $12 associated with variable interest entity for the nine months ended September 30, 2025 and 2024, respectively)	(16)	(74)
Accounts payable	6,740	5,529
Accrued expenses	2,655	2,175
Other liabilities	109	(46)
Purchase of short-term investments	(16,300)	(33,591)
Redemption of short-term investments	24,737	38,602
Payments on long-term debt	(4,374)	(834)
Payments of noncontrolling interest tax withholding	(335)	0
Payment for Global Wells noncontrolling membership interest redemption	0	2,326
Payment of Global Wells noncontrolling membership interest redemption gain tax withholding	(879)	0
VIE, Primary Beneficiary
Depreciation and amortization	911	910
Amortization of loan fees	47	46
Accrued interest on certificates of deposit (including $40 and $49 associated with variable interest entity for the nine months ended September 30, 2025 and 2024, respectively)	(40)	(49)
Government grant income (including $24 and $0 associated with variable interest entity for the nine months ended September 30, 2025 and 2024, respectively)	(24)	0
Prepaid expenses and other current assets	(99)	24
Other non-current assets (including $21 and $12 associated with variable interest entity for the nine months ended September 30, 2025 and 2024, respectively)	21	12
Accounts payable	81	4
Accrued expenses	(89)	(225)
Other liabilities	64	0
Purchase of short-term investments	(7,982)	(18,079)
Redemption of short-term investments	11,215	7,000
Payments on long-term debt	(4,374)	(834)
Payments of noncontrolling interest tax withholding	(326)	0
Payment for Global Wells noncontrolling membership interest redemption	0	2,010
Payment of Global Wells noncontrolling membership interest redemption gain tax withholding	$ (879)	$ 0