Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flow from operating activities:
Net income	$ 4,498	$ 26,562
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of royalty interests in oil and natural gas properties	10,485	9,624
Depreciation of property and equipment	78	46
Amortization of debt issuance costs	491	482
Amortization of right-of-use assets	365
Unrealized (gain) loss on commodity derivative instruments	224
Stock-based compensation	2,586	1,830
Deferred income taxes	390	2,302
Changes in operating assets and liabilities
Accounts receivable	3,213	3,242
Prepaid expenses	147	232
Other assets	(51)	10
Accounts payable and accrued expenses	69	1,454
Other liabilities	(430)	476
Net cash provided by operating activities	22,065	46,260
Cash flows from investing activities:
Purchase of property and equipment	(14)	(542)
Acquisition of oil and natural gas properties	(2,101)	(20,903)
Net cash used in investing activities	(2,115)	(21,445)
Cash flows from financing activities:
Proceeds from credit facility	10,000	30,000
Repayments of long-term debt	(13,500)	(13,000)
Dividends paid	(8,738)	(24,089)
Distributions to non-controlling interests	(7,600)	(22,302)
Deferred financing fees	(85)
Distribution equivalent rights paid	(69)	(114)
Net cash used in financing activities	(19,992)	(29,505)
Net increase (decrease) in cash and cash equivalents	(42)	(4,690)
Cash and cash equivalents, beginning of period	2,543	7,317
Cash and cash equivalents, end of period	2,501	2,627
Supplemental disclosure of cash flow information:
Cash paid for interest	1,216	1,356
Cash paid for income taxes		$ 1,260
Non-cash investing and financing activities:
Right-of-use assets obtained in exchange for operating leases	1,547
Accrued bonus paid in stock	$ 113