Note 7 - Capital Leased Assets (Details Textual)	1 Months Ended
	Nov. 30, 2003	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Capital Leases, Balance Sheet, Assets by Major Class, Net, Total		$ 6,311,000	$ 6,360,000
Capital Leased Asset, Equipment for Landfill Operation [Member]
Capital Leases, Balance Sheet, Assets by Major Class, Net, Total		100,000	100,000
Golf and Related Operations [Member]
Capital Leases, Balance Sheet, Assets by Major Class, Net, Total		800,000	$ 800,000
Squaw Creek Country Club Lease [Member]
Initial Lease Term	10 years
Number of Consecutive Renewal Term Options	4
Renewal Lease Term	10 years
Capital Leases, Future Minimum Payments Due, Next Twelve Months		15,000
Leasehold Improvements Required to be Made Per Year		$ 150,000