Business Segments (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Business Segments (in thousands)

	Year ended			Year ended
	December 31,			December 31,
	2018			2017
Revenues:
Asset management	$	2,309			2,284
Mining royalty lands		8,139			7,241
Development		1,206			1,230
Stabilized Joint Venture		10,368			4,847
	$	22,022			15,602
Operating profit:
Before corporate expenses:
Asset management	$	1,051			1,035
Mining royalty lands		7,504			6,732
Development		(2,104	)		(1,528	)
Stabilized Joint Venture		(537	)		(2,018	)
Operating profit before corporate expenses		5,914			4,221
Corporate expenses:
Allocated to asset management		(153	)		(154	)
Allocated to mining royalty lands		(214	)		(167	)
Allocated to Development		(1,984	)		(1,231	)
Allocated to Stabilized Joint Venture		(393	)		(65	)
Unallocated		(1,208	)		(1,563	)
		(3,952	)		(3,180	)
	$	1,962			1,041
Interest expense	$	3,103			2,741
Depreciation, depletion and amortization:
Asset management	$	540			512
Mining royalty lands		198			110
Development		228			337
Stabilized Joint Venture		6,932			4,975
	$	7,898			5,934
Capital expenditures:
Asset management	$	335			221
Mining royalty lands		—			—
Development		6,396			2,218
Stabilized Joint Venture		563			857
	$	7,294			3,296
Identifiable net assets at end of period:
Asset management	$	10,593			2,960
Discontinued operations		3,224			176,694
Mining royalty lands		37,991			38,656
Development		119,029			46,684
Stabilized Joint Venture		138,206			144,386
Investments available for sale at fair value		165,212			—
Cash items		22,749			4,524
Unallocated corporate assets		8,484			4,830
	$	505,488			418,734