Business Segments (Tables)

3 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Business segments (in thousands)

	Three Months ended
	March 31,
	2019			2018
Revenues:
Asset management	$	641			581
Mining royalty lands		2,229			1,772
Development		269			297
Stabilized Joint Venture		2,575			2,425
		5,714			5,075
Operating profit (loss):
Before corporate expenses:
Asset management	$	97			259
Mining royalty lands		2,044			1,618
Development		(553	)		(387	)
Stabilized Joint Venture		412			(714	)
Operating profit before corporate expenses		2,000			776
Corporate expenses:
Allocated to asset management		(163	)		(3	)
Allocated to mining royalty lands		(43	)		(77	)
Allocated to development		(399	)		(419	)
Allocated to Stabilized Joint Venture		(40	)		(142	)
Unallocated		—			(38	)
Total corporate expenses		(645	)		(679	)
	$	1,355			97
Interest expense	$	588			843
Depreciation, depletion and amortization:
Asset management	$	177			131
Mining royalty lands		52			54
Development		58			57
Stabilized Joint Venture		1,200			2,156
	$	1,487			2,398
Capital expenditures:
Asset management	$	6,466			162
Mining royalty lands		—			—
Development		370			279
Stabilized Joint Venture		(117	)		(243	)
	$	6,719			198

		March 31,	December 31,
Identifiable net assets		2019	2018
Asset management	$	17,062	10,593
Discontinued operations		3,091	3,224
Mining royalty lands		38,021	37,991
Development		121,315	119,029
Stabilized Joint Venture		136,959	138,206
Investments available for sale at fair value		148,778	165,212
Cash items		29,826	22,749
Unallocated corporate assets		11,071	8,484
	$	506,123	505,488