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v3.23.2

Summary of Significant Accounting Policies (Narrative) (Details) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 USD ($) item shares | Jun. 30, 2022 shares | Jun. 30, 2023 USD ($) item segment $ / shares shares | Jun. 30, 2022 USD ($) shares | Dec. 31, 2022 USD ($)
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Number of market serving | item | 27 |  | 27 |  |
Number of FM radio stations | item |  |  | 79 |  |
Number of AM radio stations |  |  | 33 |  |
Number of metro signals |  |  | 80 |  |
Antidilutive securities excluded from computation of earnings per share, amount | shares | 0 | 0 | 0 | 0 |
Securities at fair value | $ 10,300,000 |  | $ 10,300,000 |  | $ 10,000,000
Amortization of debt issuance costs |  |  | $ 18,000 | $ 6,000 |
Cash dividend paid | $ / shares |  |  | $ 0 |  |
Debt securities, held to maturity | 10,300,000 |  | $ 10,300,000 |  | 10,100,000
Allowance for doubtful accounts receivable | $ 476,000 |  | $ 476,000 |  | $ 519,000
Number of Radio Markets | item |  |  | 27 |  |
Number of operating segments | segment |  |  | 1 |  |
Number of reportable segments | segment |  |  | 1 |  |

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- Definition Amount of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(5)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-4 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
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