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v3.24.1

Revenue Sources and Concentration of Sales (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Revenues | $ 358,093 | $ 364,754
Accounts Receivable, after Allowance for Credit Loss, Current | 6,408 | 9,571
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customers Outside of US [Member] |  |
Revenues | $ 0 | $ 0
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Largest Customer [Member] |  |
Concentration Risk, Percentage | 19.00% | 20.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Second Largest Customer [Member] |  |
Concentration Risk, Percentage | 16.00% | 19.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Third Largest Customer [Member] |  |
Concentration Risk, Percentage | 15.00% | 16.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] |  |
Accounts Receivable, after Allowance for Credit Loss, Current |  | $ 9,571
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Largest Customer [Member] |  |
Accounts Receivable, after Allowance for Credit Loss, Current | $ 6,408 |
Concentration Risk, Percentage | 28.00% | 35.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Second Largest Customer [Member] |  |
Concentration Risk, Percentage | 19.00% | 29.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Third Largest Customer [Member] |  |
Concentration Risk, Percentage | 17.00% |

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