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Schedule of Deferred Tax Assets (Details) - USD ($)
Dec. 31, 2023
Dec. 31, 2022
Income Tax Disclosure [Abstract]    
Depreciation $ 110,000 $ 109,000
Allowance for bad debts 263,000 248,000
Net operating loss carry-forwards 12,939,000 13,561,000
Stock option expense 257,000 334,000
Research and other credits 834,000 891,000
Lease liability 56,000 99,000
Amortization 225,000 130,000
Other 35,000
Total gross deferred tax assets 14,719,000 15,372,000
Lease liability 38,000 69,000
Total gross deferred tax liabilities 38,000 69,000
Valuation allowance (14,681,000) (15,303,000)
Net deferred tax