Income Taxes - Deferred tax assets and liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Net operating loss carryforwards	$ 26,040	$ 23,589
Research and development credit carryforwards	47	40
Share based compensation	4,753	4,226
Lease liability	3,156	3,404
Intangible assets	452	745
Capitalized Research and Development expenditure	6,185	4,228
Other	10	1
Gross deferred tax asset	40,643	36,233
Valuation allowance	(30,830)	(25,057)	$ (13,707)
Net deferred tax assets	9,813	11,176
Deferred tax liabilities:
Depreciation	(1,815)	(1,652)
Right-of-use lease asset	(1,149)	(1,922)
Undistributed earnings of subsidiaries	(1,248)	(1,267)
Intangible assets	(6,039)	(6,909)
Net deferred tax liabilities	(10,251)	(11,750)
Total deferred tax, net	$ (438)	$ (574)