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Note 12 - Business Segment Information (Details Textual) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Restricted Cash and Cash Equivalents, Noncurrent | $ 2,905 |
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] |  |
Number of Major Customers | 0 | 1
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | One Customer [Member] |  |
Concentration Risk, Percentage |  | 8.00%
Golf and Related Operations [Member] |  |
Number of Golf Courses | 3 |
Increase (Decrease) in Operating Assets | $ 1,300 |
Waste Management Services [Member] |  |
Increase (Decrease) in Operating Assets | $ 2,400 |
Waste Management Services [Member] | Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | One Customer [Member] |  |
Concentration Risk, Percentage |  | 11.00%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611 + Details
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