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Note 9 - Related Party Transactions (Details Textual) |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 20, 2020 | May 31, 2019 shares | May 17, 2019 USD ($) shares | May 31, 2019 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | May 16, 2019
Treasury Stock, Shares, Acquired (in shares) | shares |  | 612,729 |  |  |  |  |  |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  |  | $ 6,700,000 |  | $ 6,682,000 |  |  |  |
Aberdeen [Member] | Unrelated Third Party [Member] |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  |  |  | 20.00% |  |  | 20.00% |
Broady Trust [Member] |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Ratio of Number of Shares Authorized to be Repurchased in Private Transaction |  |  | 0.4105 |  |  |  |  |  |  |
Treasury Stock, Shares, Acquired (in shares) | shares |  |  | 178,324 |  |  |  |  |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  | $ 1,900,000 |  |  |  |  |  |  |
Director [Member] |  |  |  |  |  |  |  |  |  |
Common Stock, Percentage of Beneficial Stock Outstanding | 5.00% |  |  |  |  |  |  |  |  | 5.00%
Director [Member] | Aberdeen [Member] |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  |  |  | 40.00% |  |  | 40.00% |
BHS [Member] | Royalty Agreement and License [Member] |  |  |  |  |  |  |  |  |  |
Royalty Expense |  |  |  |  | $ 35,000 | $ 29,000 |  | $ 50,000 | $ 56,000 |
Related Party Transaction, Additional Extension Period of Agreement (Year) | 5 years |  |  |  |  |  |  |  |  |
Related Party Transaction, Automatic Renewal Period of Agreement (Year) | 1 year |  |  |  |  |  |  |  |  |
Number of Days Termination Notice (Day) | 90 days |  |  |  |  |  |  |  |  |
Aberdeen [Member] |  |  |  |  |  |  |  |  |  |
Related Party Transaction, Other Revenues from Transactions with Related Party |  |  |  |  |  | $ 420 |  |  |  |
Aberdeen [Member] | Shipment of Apparel Products [Member] |  |  |  |  |  |  |  |  |  |
Number of Product Orders |  |  |  |  |  | 1 |  |  |  |
Related Party Transaction, Amounts of Transaction |  |  |  |  |  |  | $ 7,100 |  |  |
Sharng Holdings [Member] | Aberdeen [Member] |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  |  |  | 40.00% |  |  | 40.00% |

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