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Note 20 - Subsequent Events (Details Textual) $ in Thousands |  |  | 2 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jan. 01, 2020 USD ($) shares | Oct. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) | Feb. 13, 2020 USD ($) shares | Feb. 12, 2020 USD ($) shares | Dec. 31, 2019 USD ($) shares | Dec. 31, 2018 USD ($) shares | Dec. 31, 2017 USD ($) shares | Feb. 13, 2019 USD ($)
Stock Repurchased and Retired During Period, Shares | shares |  |  |  |  |  | 101,816 |  |  |
Stock Repurchased and Retired During Period, Value |  |  |  |  |  | $ 4,986 |  |  |
Royal Bank, Bank of Montreal, Bank of Nova Scotia, HSBC and CIBC [Member] |  |  |  |  |  |  |  |  |
Total Funded Debt to EBITDA Ratio |  |  | 2 |  |  | 2 |  |  |
Stock Buyback Program 2019 [Member] |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  |  | $ 40,000
Subsequent Event [Member] | Stock Buyback Program 2020 [Member] |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  | $ 40,000 |  |  |  |
Subsequent Event [Member] | Stock Buyback Program 2019 [Member] |  |  |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Shares | shares |  |  |  | 101,816 | 101,816 |  |  |  |
Stock Repurchased and Retired During Period, Value |  |  |  | $ 5,000 | $ 5,000 |  |  |  |
Cedar Holdings Group, Incorporated [Member] |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Total |  | $ 14,100 |  |  |  |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred |  |  | $ 100 |  |  |  |  |  |
Cedar Holdings Group, Incorporated [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Total | $ 13,966 |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross | $ 8,901 |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares | 32,374 |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable | $ 2,000 |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Shares, Restriction Period | 2 years |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | $ 4,000 |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability, Total | $ 3,065 |  |  |  |  |  |  |  |
Cedar Holdings Group, Incorporated [Member] | Subsequent Event [Member] | Measurement Input, Discount Rate [Member] |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | 11.3 |  |  |  |  |  |  |  |

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