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Note 5 - Stockholders' Equity (Details Textual) $ / shares in Units, $ in Thousands |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 02, 2019 $ / shares shares | Mar. 31, 2020 USD ($) $ / shares shares | Mar. 31, 2019 USD ($) | Dec. 31, 2019 shares | Nov. 05, 2019 USD ($)
Capital Units, Authorized (in shares) |  | 245,000,000 |  |  |
Common Stock, Shares Authorized (in shares) |  | 200,000,000 |  | 200,000,000 |
Preferred Stock, Shares Authorized (in shares) |  | 20,000,000 |  |  |
Common Stock, Voting Rights, Votes Per Share |  | 1 |  |  |
Dividends, Common Stock, Total | $ |  | $ 0 | $ 0 |  |
Treasury Stock, Value, Acquired, Cost Method | $ |  | $ 6,000 |  |  |
Common Stock, Capital Shares Reserved for Future Issuance (in shares) |  | 5,262,386 |  | 6,130,944 |
Repurchase Authorization 2019 [Member] |  |  |  |  |
Stock Repurchase Program, Authorized Amount | $ |  |  |  |  | $ 150,000
Treasury Stock, Shares, Acquired (in shares) |  | 500,923 |  |  |
Treasury Stock Acquired, Average Cost Per Share (in dollars per share) | $ / shares |  | $ 11.39 |  |  |
Treasury Stock, Value, Acquired, Cost Method | $ |  | $ 6,000 |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ |  | $ 123,000 |  |  |
Raycom [Member] | Common Stock [Member] |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | 11,500,000 |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ / shares | $ 14.74 |  |  |  |
Common Class A [Member] |  |  |  |  |
Common Stock, Shares Authorized (in shares) |  | 25,000,000 |  | 25,000,000 |
Common Stock, Voting Rights, Votes Per Share |  | 10 |  |  |
Common Stock, Capital Shares Reserved for Future Issuance (in shares) |  | 1,336,440 |  | 1,503,254 |

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- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 + Details
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- Definition Number of authorized capital units or capital shares. This element is relevant to issuers of face-amount certificates and registered investment companies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04.16(a)) -URI http://asc.fasb.org/extlink&oid=120401414&loc=d3e603758-122996 + Details
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