Consolidated Statements of Income and Comprehensive Income - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
OPERATING REVENUES
Sales	$ 13,681,000	$ 36,000,000
Commissions	894,000	1,116,000
Leasing	5,527,000	5,324,000
Utilities	3,153,000	3,345,000
Resort amenities and other	1,122,000	1,579,000
Total Operating Revenues	24,377,000	47,364,000
OPERATING COSTS AND EXPENSES
Cost of sales	579,000	6,188,000
Other	878,000	1,272,000
Leasing	2,444,000	2,971,000
Utilities	1,892,000	2,325,000
Resort amenities and other	1,033,000	947,000
General and administrative	2,515,000	2,204,000
Share-based compensation	1,319,000	984,000
Depreciation	1,756,000	1,984,000
Pension and other post-retirement expenses	871,000	5,019,000
Total Operating Costs and Expenses	13,287,000	23,894,000
OPERATING INCOME	11,090,000	23,470,000
Interest expense	(190,000)	(1,656,000)
NET INCOME	10,900,000	21,814,000
Pension, net of income taxes of $0	2,041,000	6,372,000
COMPREHENSIVE INCOME	$ 12,941,000	$ 28,186,000
NET INCOME PER COMMON SHARE --BASIC AND DILUTED (in dollars per share)	$ 0.57	$ 1.15