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Income Taxes (Significant components of the Company's deferred tax liabilities and assets) (Details) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred tax liabilities: |  |
Property and equipment | $ 3,976,000 | $ 4,218,000
Intangible assets | 23,006,000 | 22,355,000
Prepaid expenses | 490,000 | 477,000
Total deferred tax liabilities | 27,472,000 | 27,050,000
Deferred tax assets: |  |
Allowance for doubtful accounts | 81,000 | 56,000
Compensation | 1,107,000 | 1,134,000
Other accrued liabilities | 162,000 | 123,000
Gross deferred tax assets | 1,350,000 | 1,313,000
Less: valuation allowance | 0 | 0
Total net deferred tax assets | 1,350,000 | 1,313,000
Net deferred tax liabilities | 26,122,000 | 25,737,000
Current portion of deferred tax assets | 296,000 | 341,000
Non-current portion of deferred tax liabilities | (26,418,000) | (26,078,000)
Net deferred tax liabilities | $ (26,122,000) | $ (25,737,000)

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