CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue
Revenue	$ 109,903	$ 103,554	$ 99,823
Cost of sales
Cost of sales	(79,184)	(58,087)	(57,984)
Operating expenses
Environmental remediation (Real Estate)	(1,576)	(5,600)	0
General & Administrative	(12,139)	(7,217)	(5,742)
Operating expenses	(34,804)	(32,831)	(24,334)
Gain on sale of timberland	87	0	12,547
Operating income (loss)
General & Administrative	(12,139)	(7,217)	(5,742)
Operating income (loss)	(3,998)	12,636	30,052
Interest expense, net	(5,797)	(4,895)	(4,471)
Income (loss) before income taxes	(9,795)	7,741	25,581
Income tax expense	(159)	(104)	(1,176)
Net and comprehensive income (loss)	(9,954)	7,637	24,405
Net and comprehensive income (loss)	(9,954)	7,637	24,405
Net and comprehensive income attributable to unitholders	2,435	6,821	17,891
Net and comprehensive income attributable to unitholders	2,435	6,821	17,891
Allocable to general partners	34	95	250
Allocable to limited partners	$ 2,401	$ 6,726	$ 17,641
Basic and diluted earnings per unit attributable to unitholders (in dollars per share)	$ 0.52	$ 1.54	$ 4.10
Distributions per unit (in dollars per share)	$ 4	$ 3.20	$ 2.8
Partnership Timber
Revenue
Revenue	$ 39,987	$ 45,422	$ 39,672
Cost of sales
Cost of sales	(19,605)	(17,828)	(14,874)
Operating expenses
Operating expenses	(5,288)	(6,268)	(5,671)
Environmental remediation (Real Estate)	0	0
Gain on sale of timberland	87		0
Operating income (loss)
Operating income (loss)	15,181	21,326	19,127
Funds Timber
Revenue
Revenue	48,646	49,819	33,842
Cost of sales
Cost of sales	(48,142)	(36,732)	(26,910)
Operating expenses
Operating expenses	(5,790)	(4,672)	(3,893)
Environmental remediation (Real Estate)	0	0
Gain on sale of timberland	0		12,547
Operating income (loss)
Operating income (loss)	(5,286)	8,415	15,586
Timberland Investment Management
Revenue
Revenue	18	9	9
Cost of sales
Cost of sales	0	0	0
Operating expenses
Operating expenses	(4,893)	(4,495)	(3,520)
Environmental remediation (Real Estate)	0	0
Gain on sale of timberland	0		0
Operating income (loss)
Operating income (loss)	(4,875)	(4,486)	(3,511)
Real Estate
Revenue
Revenue	21,252	8,304	26,300
Cost of sales
Cost of sales	(11,437)	(3,527)	(16,200)
Operating expenses
Operating expenses	(5,118)	(4,579)	(5,508)
Environmental remediation (Real Estate)	(1,576)	(5,600)
Gain on sale of timberland	0		0
Operating income (loss)
Operating income (loss)	3,121	(5,402)	4,592
ORM Timber Funds
Operating income (loss)
Net and comprehensive (income) loss attributable to noncontrolling interests	11,813	(895)	(6,516)
Net and comprehensive (income) loss attributable to noncontrolling interests	11,813	(895)	(6,516)
Real Estate
Operating income (loss)
Net and comprehensive (income) loss attributable to noncontrolling interests	576	79	2
Net and comprehensive (income) loss attributable to noncontrolling interests	$ 576	$ 79	$ 2