Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Cash Flows [Abstract]
Net income	$ 5,715	$ 11,618
Adjustments to reconcile net income to net cash provided by operating activities
Depletion	4,717	4,922
Equity-based compensation	523	605
Depreciation and amortization	140	110
Deferred taxes and other	45	65
Cost of land sold	0	230
Gain on sale of timberland - Funds	0	(12,503)
Gain on disposal of property and equipment	(4)	(1)
Cash flows from changes in operating accounts
Accounts receivable, net	1,943	1,151
Prepaid expenses and other assets	(203)	3,066
Real estate project expenditures	(278)	(1,825)
Accounts payable and accrued liabilities	(1,979)	(1,401)
Deferred revenue	245	37
Environmental remediation liability	(219)	(3,329)
Other current and long-term liabilities	27	(21)
Net cash provided by operating activities	10,672	2,724
Cash flows from investing activities
Reforestation and roads	(892)	(335)
Capital expenditures	(274)	(23)
Proceeds from sale of property and equipment	4	11
Acquisitions of timberland - Partnership	(4,626)	(4,951)
Acquisitions of timberland - Funds	(108,379)	0
Proceeds from sale of timberland - Funds	0	26,444
Net cash provided by (used in) investing activities	(114,167)	21,146
Cash flows from financing activities
Line of credit borrowings	19,800	10,000
Line of credit repayments	(1,500)	(7,000)
Repayment of long-term debt	(31)	(30)
Debt issuance costs	0	(7)
Proceeds from unit issuances - distribution reinvestment plan	59	0
Unit repurchases	(292)	0
Payroll taxes paid on unit net settlements	(102)	(94)
Cash distributions to unitholders	(3,052)	(3,058)
Cash distributions - ORM Timber Funds, net of distributions to Partnership	(3,481)	(23,083)
Capital call - ORM Timber Funds, net of Partnership contribution	92,280	825
Net cash provided by (used in) financing activities	103,681	(22,447)
Net increase in cash and restricted cash	186	1,423
Cash and restricted cash at beginning of period	5,284	2,937
Cash and restricted cash at end of period	$ 5,470	$ 4,360