Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets (liabilities):
Accrued expenses	$ 131	$ 147
Deferred revenue	36	129
Stock-based compensation	56	420
Fixed assets	4	116
Goodwill	0	28
Inventory	156	106
Intangible amortization	32
Intangible amortization		(80)
Section 174 research and experimentation	0	409
Section 163(j) interest expense	314	0
R&D credit	2,154	2,154
Texas margin tax temporary credit	55	74
Other	61	101
Total deferred tax asset, net of deferred tax liabilities	38,380	38,492
Valuation allowance	(38,380)	(38,492)
Net deferred tax asset	0	0
Federal
Deferred tax assets (liabilities):
Tax benefit of operating loss carry forward	29,416	28,459
State
Deferred tax assets (liabilities):
Tax benefit of operating loss carry forward	$ 5,965	$ 6,429