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Long-Term Debt (Narrative) (Details) - USD ($) |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 19, 2022 | Oct. 27, 2021 | Jun. 27, 2018 | Aug. 18, 2015 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Nov. 01, 2021 | Jul. 01, 2019
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  |  | $ 0 | $ 0 |  |  |
Amortization of debt issuance costs |  |  |  |  | $ 10,000 | 37,000 | $ 40,000 |  |
Credit Facility Participation Fee And Fronting Fee Percentage |  |  |  |  | 0.25% |  |  |  |
Debt instrument, term |  |  |  | 5 years |  |  |  |  |
Unamortized Debt Issuance Expense |  |  |  |  | $ 266,000 |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  | $ 100,000,000 |  |  |  | $ 50,000,000 | $ 70,000,000
Debt Instrument, Maturity Date |  |  | Jun. 27, 2023 | Aug. 18, 2020 |  |  |  |  |
Repayments of Long-term Lines of Credit |  | $ 10,000,000 |  |  |  |  |  |  |
Line of Credit Facility, Commitment Fee Percentage | 0.25% |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  |  | $ 50,000,000 |  |  |
Debt instrument, term |  |  | 5 years |  |  |  |  |  |
Revolving Credit Facility | London Interbank Offered Rate (LIBOR) |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Line of credit facility, interest rate at period end |  |  |  |  | 4.30% |  |  |  |
Minimum | Base Rate |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 0.00% |  |  |  |
Minimum | London Interbank Offered Rate (LIBOR) |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.00% |  |  |  |
Minimum | Revolving Credit Facility |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Line of Credit Facility, Commitment Fee Percentage |  |  |  |  | 0.20% |  |  |  |
Maximum | Base Rate |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 1.00% |  |  |  |
Maximum | London Interbank Offered Rate (LIBOR) |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  | 2.00% |  |  |  |
Maximum | Revolving Credit Facility |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Line of Credit Facility, Commitment Fee Percentage |  |  |  |  | 0.30% |  |  |  |
Second Amendment | Revolving Credit Facility |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt Issuance Costs, Net |  |  |  |  | $ 120,000 |  |  |  |
Revolving Credit Facility | Third Amendment |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt Issuance Costs, Net |  |  |  |  | $ 161,000 |  |  |  |

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