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Consolidated Statements of Comprehensive Loss (Parenthetical) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Stock-based compensation | $ 1,383,456 | $ 750,670
Unrecognized actuarial gains (losses) on postretirement plans, income tax benefit | 140,151 | 355,662
Station Operating Expenses [Member] |  |
Stock-based compensation | 317,938 | 333,012
Corporate General and Administrative Expenses [Member] |  |
Stock-based compensation | $ 1,065,518 | $ 417,658

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