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v3.21.2

Note 14 - Business Segment Information (Details Textual) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2021 USD ($) | Jun. 30, 2020 | Dec. 31, 2020 USD ($)
Assets, Total | $ 78,720 |  | $ 77,950
Waste Management Services [Member] |  |  |
Assets, Total | $ 31,900 |  | $ 31,900
Golf and Related Operations [Member] |  |  |
Number of Major Customers | 1,900,000 |  | 800,000
Increase (Decrease) in Total Assets | $ 1,900 |  |
Corporate Segment [Member] |  |  |
Increase (Decrease) in Total Assets | $ (1,000) |  |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |  |
Number of Major Customers | 1 | 0 |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Waste Management Services [Member] |  |  |
Number of Major Customers |  | 0 |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Golf and Related Operations [Member] |  |  |
Number of Major Customers | 0 | 0 |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | One Customer [Member] |  |  |
Concentration Risk, Percentage | 7.00% |  |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | One Customer [Member] | Waste Management Services [Member] |  |  |
Concentration Risk, Percentage | 7.00% |  |
Customer Concentration Risk [Member] | Sales Revenue, Net to External Customers [Member] | Waste Management Services [Member] |  |  |
Number of Major Customers | 1 |  |
Customer Concentration Risk [Member] | Sales Revenue, Net to External Customers [Member] | One Customer [Member] |  |  |
Concentration Risk, Percentage | 11.00% |  |
Customer Concentration Risk [Member] | Sales Revenue, Net to External Customers [Member] | One Customer [Member] | Waste Management Services [Member] |  |  |
Concentration Risk, Percentage | 11.00% |  |

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