Business Segments (Tables)

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Business segments (in thousands)

	Three Months ended
	March 31,
	2020			2019
Revenues:
Asset management	$	652			641
Mining royalty lands		2,185			2,229
Development		293			269
Stabilized Joint Venture		2,653			2,575
		5,783			5,714
Operating profit (loss):
Before corporate expenses:
Asset management	$	177			97
Mining royalty lands		2,001			2,044
Development		(774	)		(553	)
Stabilized Joint Venture		577			412
Operating profit before corporate expenses		1,981			2,000
Corporate expenses:
Allocated to asset management		(308	)		(163	)
Allocated to mining royalty lands		(97	)		(43	)
Allocated to development		(712	)		(399	)
Allocated to Stabilized Joint Venture		(70	)		(40	)
Total corporate expenses		(1,187	)		(645	)
	$	794			1,355
Interest expense	$	51			588
Depreciation, depletion and amortization:
Asset management	$	192			177
Mining royalty lands		38			52
Development		54			58
Stabilized Joint Venture		1,184			1,200
	$	1,468			1,487
Capital expenditures:
Asset management	$	213			6,466
Mining royalty lands		—			—
Development		297			370
Stabilized Joint Venture		(23	)		(117	)
	$	487			6,719

		March 31,	December 31,
Identifiable net assets		2020	2019
Asset management	$	18,644	18,468
Mining royalty lands		38,494	38,409
Development		176,575	179,357
Stabilized Joint Venture		132,801	133,956
Investments available for sale at fair value		148,667	137,867
Cash items		11,564	26,793
Unallocated corporate assets		7,954	3,298
	$	534,699	538,148