Statements of Changes in Members' Capital - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022
Beginning balance		$ 67,657
Net Income (Loss)		3,808	$ 4,058
Organization and offering expenses repaid by RMC		9
Ending balance		65,456	67,657
Members' Capital [Member]
Beginning balance		71,730	78,192
Net Income (Loss)		3,770	4,018
Organization and offering expenses allocated		(255)	(282)
Ending balance		69,018	71,730
Members' Capital [Member] | RMC [Member]
Organization and offering expenses repaid by RMC		0	0
Members' Capital [Member] | Earnings Distributed to Members [Member]
Partners capital accounts		(3,457)	(4,122)
Members' Capital [Member] | Earnings Distributed Used in DRIP [Member]
Partners capital accounts		1,476	1,994
Members' Capital [Member] | Member's Redemptions [Member]
Partners capital accounts		(4,240)	(8,070)
Members' Capital [Member] | Prior to Adjustment of Credit Losses [Member]
Beginning balance		71,730
Ending balance			71,730
Members' Capital [Member] | Adjustment of Credit Losses [Member]
Beginning balance		(6)
Ending balance			(6)
Members' Capital [Member] | Adjusted Value After Credit Losses [Member]
Beginning balance		71,724
Ending balance			71,724
Manager's Capital [Member]
Beginning balance		82	82
Net Income (Loss)		38	40
Organization and offering expenses allocated		0	0
Ending balance		82	82
Manager's Capital [Member] | RMC [Member]
Organization and offering expenses repaid by RMC		0	0
Manager's Capital [Member] | Earnings Distributed to Members [Member]
Partners capital accounts		(37)	(40)
Manager's Capital [Member] | Earnings Distributed Used in DRIP [Member]
Partners capital accounts		0	0
Manager's Capital [Member] | Member's Redemptions [Member]
Partners capital accounts		0	0
Manager's Capital [Member] | Prior to Adjustment of Credit Losses [Member]
Beginning balance		82
Ending balance			82
Manager's Capital [Member] | Adjustment of Credit Losses [Member]
Beginning balance		(1)
Ending balance			(1)
Manager's Capital [Member] | Adjusted Value After Credit Losses [Member]
Beginning balance		81
Ending balance			81
Unallocated Organization and Offering Expenses [Member]
Beginning balance		(1,045)	(1,458)
Net Income (Loss)		0	0
Organization and offering expenses allocated		255	282
Organization and offering expenses repaid by RMC	[1]	(48)	(131)
Ending balance		(742)	(1,045)
Unallocated Organization and Offering Expenses [Member] | RMC [Member]
Organization and offering expenses repaid by RMC		48	131
Unallocated Organization and Offering Expenses [Member] | Earnings Distributed to Members [Member]
Partners capital accounts		0	0
Unallocated Organization and Offering Expenses [Member] | Earnings Distributed Used in DRIP [Member]
Partners capital accounts		0	0
Unallocated Organization and Offering Expenses [Member] | Member's Redemptions [Member]
Partners capital accounts		0	0
Unallocated Organization and Offering Expenses [Member] | Prior to Adjustment of Credit Losses [Member]
Beginning balance		(1,045)
Ending balance			(1,045)
Unallocated Organization and Offering Expenses [Member] | Adjustment of Credit Losses [Member]
Beginning balance		0
Ending balance			0
Unallocated Organization and Offering Expenses [Member] | Adjusted Value After Credit Losses [Member]
Beginning balance		(1,045)
Ending balance			(1,045)
Members' and Manager's Capital, Net [Member]
Beginning balance		70,767	76,816
Net Income (Loss)		3,808	4,058
Organization and offering expenses allocated		0	0
Ending balance		68,358	70,767
Members' and Manager's Capital, Net [Member] | RMC [Member]
Organization and offering expenses repaid by RMC		48	131
Members' and Manager's Capital, Net [Member] | Earnings Distributed to Members [Member]
Partners capital accounts		(3,494)	(4,162)
Members' and Manager's Capital, Net [Member] | Earnings Distributed Used in DRIP [Member]
Partners capital accounts		1,476	1,994
Members' and Manager's Capital, Net [Member] | Member's Redemptions [Member]
Partners capital accounts		(4,240)	(8,070)
Members' and Manager's Capital, Net [Member] | Prior to Adjustment of Credit Losses [Member]
Beginning balance		70,767
Ending balance			70,767
Members' and Manager's Capital, Net [Member] | Adjustment of Credit Losses [Member]
Beginning balance		(7)
Ending balance			(7)
Members' and Manager's Capital, Net [Member] | Adjusted Value After Credit Losses [Member]
Beginning balance		$ 70,760
Ending balance			$ 70,760

[1] RMC is obligated per the Operating Agreement to repay RMI IX for the amount of unallocated O&O expenses attributed to a member’s capital account if the member redeems prior to the 40 quarterly allocations. RMC estimated its future obligation to repay unallocated O&O expenses on scheduled redemptions as of December 31, 2023, to be approximately $9 thousand.