| Fiscal period | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
| Period End Date | 12/31/2025 | 12/31/2024 | 12/31/2023 | 12/31/2022 | 12/31/2021 | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 12/31/2016 |
| Operating Revenues | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Voice | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Data | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Directory | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Long-distance voice | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Directory advertising | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Landline local service | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Network access | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Wireless service | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Service | 101,158.00 | 100,135.00 | 99,649.00 | 97,831.00 | 146,391.00 | 152,767.00 | 163,499.00 | 152,345.00 | 145,597.00 | 148,884.00 |
| Equipment | 24,490.00 | 22,201.00 | 22,779.00 | 22,910.00 | 22,473.00 | 18,993.00 | 17,694.00 | 18,411.00 | 14,949.00 | 14,902.00 |
| Other | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Total Revenues | 125,648.00 | 122,336.00 | 122,428.00 | 120,741.00 | 168,864.00 | 171,760.00 | 181,193.00 | 170,756.00 | 160,546.00 | 163,786.00 |
| Cost of sales | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cost of services and sales - Equipment | 25,396.00 | 22,249.00 | 23,136.00 | 24,009.00 | 23,778.00 | 19,706.00 | 18,653.00 | 19,786.00 | 18,709.00 | 18,757.00 |
| Cost of services and sales - Broadcast, programming and operations | -- | -- | -- | -- | 24,797.00 | 27,305.00 | 31,132.00 | 26,727.00 | 21,159.00 | 19,851.00 |
| Cost of services and sales - Other cost of services (exclusive of depreciation andamortization shown separately below) | 25,424.00 | 26,972.00 | 26,987.00 | 26,839.00 | 31,232.00 | 32,909.00 | 34,356.00 | 32,906.00 | 37,511.00 | 38,276.00 |
| Gross profit | -- | -- | 72,305.00 | -- | -- | -- | -- | 91,337.00 | -- | -- |
| Operations and support | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Depreciation and amortization | 20,886.00 | 20,580.00 | 18,777.00 | 18,021.00 | 22,862.00 | 28,516.00 | 28,217.00 | 28,430.00 | 24,387.00 | 25,847.00 |
| Impairment of intangible assets | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Selling, general and administrative | 28,942.00 | 28,411.00 | 28,874.00 | 28,961.00 | 37,944.00 | 38,039.00 | 39,422.00 | 36,765.00 | 34,917.00 | 36,347.00 |
| Abandonment of network assets | -- | -- | -- | -- | -- | -- | (1,458.00) | (46.00) | (2,914.00) | (361.00) |
| Asset impairments and abandonments | (838.00) | (5,075.00) | (1,193.00) | (27,498.00) | (4,904.00) | (18,880.00) | -- | -- | -- | -- |
| TOTAL OPERATING EXPENSE | 101,486.00 | 103,287.00 | 98,967.00 | 125,328.00 | 145,517.00 | 165,355.00 | 153,238.00 | 144,660.00 | 139,597.00 | 139,439.00 |
| Operating income (loss) | 24,162.00 | 19,049.00 | 23,461.00 | (4,587.00) | 23,347.00 | 6,405.00 | 27,955.00 | 26,096.00 | 20,949.00 | 24,347.00 |
| Interest expense | 6,804.00 | 6,759.00 | 6,704.00 | 6,108.00 | 6,884.00 | 7,925.00 | 8,422.00 | 7,957.00 | 6,300.00 | 4,910.00 |
| Equity in net income of affiliates | 1,895.00 | 1,989.00 | 1,675.00 | 1,791.00 | 631.00 | 95.00 | 6.00 | (48.00) | (128.00) | 98.00 |
| Interest income | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Other income (expense) - net | 7,754.00 | 2,419.00 | 1,416.00 | 5,810.00 | 9,853.00 | (1,431.00) | (1,071.00) | 6,782.00 | 618.00 | 277.00 |
| Total Other Income (Expense) | 2,845.00 | (2,351.00) | (3,613.00) | 1,493.00 | 3,600.00 | (9,261.00) | (9,487.00) | (1,223.00) | (5,810.00) | (4,535.00) |
| Income Before Income Taxes | 27,007.00 | 16,698.00 | 19,848.00 | (3,094.00) | 26,947.00 | (2,856.00) | 18,468.00 | 24,873.00 | 15,139.00 | 19,812.00 |
| Foreign | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Current - federal | 970.00 | 2,769.00 | 2,280.00 | 579.00 | (1,198.00) | (687.00) | 584.00 | 3,258.00 | 682.00 | 2,915.00 |
| Deferred - Federal | 2,524.00 | 1,289.00 | 2,250.00 | 2,206.00 | 5,296.00 | 1,039.00 | 1,656.00 | 277.00 | (17,970.00) | 3,127.00 |
| Federal: Amortization of investment tax credits | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Current - State, local and foreign | -- | -- | 66.00 | 106.00 | 646.00 | (6.00) | 603.00 | 513.00 | 471.00 | 335.00 |
| Deferred - State, local and foreign | 21.00 | (28.00) | 38.00 | (44.00) | (248.00) | (57.00) | (99.00) | (140.00) | 989.00 | (519.00) |
| Deferred - State and local | 331.00 | (512.00) | (832.00) | 912.00 | 456.00 | 263.00 | 144.00 | 473.00 | 1,041.00 | 339.00 |
| Provision for Income Taxes - Total | 3,621.00 | 4,445.00 | 4,225.00 | 3,780.00 | 5,468.00 | 965.00 | 3,493.00 | 4,920.00 | (14,708.00) | 6,479.00 |
| Current - State and local | 44.00 | 68.00 | 423.00 | 21.00 | 516.00 | 413.00 | 605.00 | 539.00 | 79.00 | 282.00 |
| Income from continuing operations | 23,386.00 | 12,253.00 | 15,623.00 | (6,874.00) | -- | -- | -- | -- | -- | -- |
| Income from discontinued operations, net of tax | -- | 0.00 | 0.00 | (181.00) | -- | -- | -- | -- | -- | -- |
| Income Before Extraordinary Income & Accounting Change | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Extraordinary item, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative effect of accounting changes, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Consolidated Net Income (Loss) | 23,386.00 | 12,253.00 | 15,623.00 | (7,055.00) | 21,479.00 | (3,821.00) | 14,975.00 | 19,953.00 | 29,847.00 | 13,333.00 |
| Less: Net Income Attributable to Noncontrolling Interest | 1,433.00 | 1,305.00 | 1,223.00 | 1,469.00 | 1,398.00 | 1,355.00 | 1,072.00 | 583.00 | 397.00 | 357.00 |
| Less - Adjustment to carrying value of noncontrolling interest | -- | -- | -- | (663.00) | -- | -- | -- | -- | -- | -- |
| Preferred stock dividends | 64.00 | 202.00 | 208.00 | 203.00 | 207.00 | 193.00 | 3.00 | -- | -- | -- |
| Net Income (Loss) available to limited partners shareholders | 21,889.00 | 10,746.00 | 14,192.00 | (8,064.00) | 19,874.00 | (5,369.00) | 13,900.00 | 19,370.00 | 29,450.00 | 12,976.00 |
| Income from continuing operations | -- | 1.49 | 1.97 | (1.10) | -- | -- | -- | -- | -- | -- |
| Income from discontinued operations | -- | 0.00 | 0.00 | (0.03) | -- | -- | -- | -- | -- | -- |
| Cumulative effect of accounting changes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Extraordinary Item | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| NET EARNINGS PER SHARE (BASIC) | 3.04 | 1.49 | 1.97 | (1.13) | 2.77 | (0.75) | 1.90 | 2.85 | 4.77 | 2.10 |
| Income from continuing operations | -- | 1.49 | 1.97 | (1.10) | -- | -- | -- | -- | -- | -- |
| Income from discontinued operations | -- | 0.00 | 0.00 | (0.03) | -- | -- | -- | -- | -- | -- |
| Cumulative effect of accounting changes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Extraordinary Item | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| NET EARNINGS PER SHARE (DILUTED) | 3.04 | 1.49 | 1.97 | (1.13) | 2.76 | (0.75) | 1.89 | 2.85 | 4.76 | 2.10 |
| Weighted Average Shares Outstanding (Basic) | 7,169.00 | 7,199.00 | 7,181.00 | 7,166.00 | 7,168.00 | 7,157.00 | 7,319.00 | 6,778.00 | 6,164.00 | 6,168.00 |
| Weighted Average Shares Outstanding (Diluted) | 7,179.00 | 7,204.00 | 7,258.00 | 7,587.00 | 7,199.00 | 7,183.00 | 7,348.00 | 6,806.00 | 6,183.00 | 6,189.00 |