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Note 11 -Income Taxes -Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Tax benefit of operating loss carry forward - Federal $ 30,164 $ 29,416
Tax benefit of operating loss carry forward - State 6,319 5,965
Accrued expenses 211 131
Deferred revenue 8 36
Stock-based compensation 0 56
Fixed assets 1 4
Inventory 199 156
Intangible amortization 19 32
Section 174 research and experimentation 261 0
Section 163(j) interest expense 0 314
R&D credit 2,154 2,154
Texas margin tax temporary credit 37 55
Other 33 61
Total deferred tax asset, net of deferred tax liabilities 39,406 38,380
Valuation allowance (39,406) (38,380)
Net deferred tax asset $ 0 $ 0