Note 9 - Segment Information - Reportable Segment Information (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015
Operating revenues		$ 47,364	$ 22,786
Operating costs and expenses		(23,894)	(13,454)
Depreciation expense		(1,984)	(2,115)
General and administrative and other expenses		(2,204)	(2,181)
OPERATING INCOME		23,470	9,332
Assets		38,883	46,599
Operating Segments [Member]
Operating revenues	[1]	47,364	22,786
Operating costs and expenses		(13,703)	(7,908)
Depreciation expense		(1,984)	(2,115)
General and administrative and other expenses		(8,207)	(3,431)
OPERATING INCOME		23,470	9,332
Interest expense		(1,656)	(2,519)
Income from continuing operations		21,814	6,813
Capital expenditures	[2]	123	20
Assets	[3]	38,883	46,599
Operating Segments [Member] | Real Estate Segment [Member]
Operating revenues	[1]	37,116	12,501
Operating costs and expenses		(7,460)	(2,515)
General and administrative and other expenses		(829)	(819)
OPERATING INCOME		28,827	9,167
Capital expenditures	[2]	123	20
Assets	[3]	11,634	12,104
Operating Segments [Member] | Leasing Segment [Member]
Operating revenues	[1]	5,324	5,546
Operating costs and expenses		(2,971)	(2,208)
Depreciation expense		(1,524)	(1,646)
General and administrative and other expenses		(626)	(619)
OPERATING INCOME		203	1,073
Assets	[3]	19,721	27,060
Operating Segments [Member] | Utilities Segment [Member]
Operating revenues	[1]	3,345	3,335
Operating costs and expenses		(2,325)	(2,260)
Depreciation expense		(394)	(397)
General and administrative and other expenses		(271)	(256)
OPERATING INCOME		355	422
Assets	[3]	3,604	4,003
Operating Segments [Member] | Resort Amenities Segment [Member]
Operating revenues	[1]	1,487	1,263
Operating costs and expenses		(897)	(872)
General and administrative and other expenses		(385)	(380)
OPERATING INCOME		205	11
Assets	[3]	1,476	1,309
Operating Segments [Member] | Corporate and Other [Member]
Operating revenues	[1],[4]	92	141
Operating costs and expenses	[4]	(50)	(53)
Depreciation expense	[4]	(66)	(72)
General and administrative and other expenses	[4]	(6,096)	(1,357)
OPERATING INCOME	[4]	(6,120)	(1,341)
Assets	[3],[4]	$ 2,448	$ 2,123

[1] Amounts are principally revenues from external customers and exclude equity in earnings of affiliates. Intersegment revenues were insignificant.

[2] Primarily includes expenditures for property and deferred costs.

[3] Segment assets are located in the United States.

[4] Consists primarily of miscellaneous transactions and unallocated general and administrative, and pension and other post-retirement expenses.