v3.26.1

Income taxes - Deferred income tax (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets (liabilities):
- Reserve for credit losses	$ 237	$ 271
- Inventory reserve	1,895	1,504
- Non qualified stock options	683	796
- NOL	67	112
- Accrued expenses	805	202
Total deferred tax assets	3,687	2,885
- Depreciation and amortization	(7,721)	(6,961)
Total deferred tax liabilities	(7,721)	(6,961)
Net deferred tax liabilities	$ (4,034)	$ (4,076)

Amount before allocation of valuation allowances of non qualified stock options.

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from allowance for credit loss on accounts receivable.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves, classified as other.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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HUDSON TECHNOLOGIES INC /NY 10-K