Condensed Consolidated Statements of Shareholders' Deficit (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Total Santa Fe Shareholders' Deficit [Member]	Noncontrolling Interest [Member]	Total
Balance at Jun. 30, 2018	$ 134,000	$ 8,808,000	$ (57,442,000)	$ (951,000)	$ (49,451,000)	$ (24,606,000)	$ (74,057,000)
Balance, shares at Jun. 30, 2018	1,339,638
Net (loss) income			566,000		566,000	501,000	1,067,000
Balance at Sep. 30, 2018	$ 134,000	8,808,000	(56,876,000)	(951,000)	(48,885,000)	(24,105,000)	(72,990,000)
Balance, shares at Sep. 30, 2018	1,339,638
Balance at Jun. 30, 2018	$ 134,000	8,808,000	(57,442,000)	(951,000)	(49,451,000)	(24,606,000)	(74,057,000)
Balance, shares at Jun. 30, 2018	1,339,638
Net (loss) income							1,443,000
Balance at Mar. 31, 2019	$ 134,000	8,808,000	(56,976,000)	(951,000)	(48,985,000)	(23,629,000)	(72,614,000)
Balance, shares at Mar. 31, 2019	1,339,638
Balance at Sep. 30, 2018	$ 134,000	8,808,000	(56,876,000)	(951,000)	(48,885,000)	(24,105,000)	(72,990,000)
Balance, shares at Sep. 30, 2018	1,339,638
Net (loss) income			(526,000)		(526,000)	156,000	(370,000)
Balance at Dec. 31, 2018	$ 134,000	8,808,000	(57,402,000)	(951,000)	(49,411,000)	(23,949,000)	(73,360,000)
Balance, shares at Dec. 31, 2018	1,339,638
Net (loss) income			426,000		426,000	320,000	746,000
Balance at Mar. 31, 2019	$ 134,000	8,808,000	(56,976,000)	(951,000)	(48,985,000)	(23,629,000)	(72,614,000)
Balance, shares at Mar. 31, 2019	1,339,638
Balance at Jun. 30, 2019	$ 134,000	8,808,000	(54,183,000)	(951,000)	(46,192,000)	(23,751,000)	(69,943,000)
Balance, shares at Jun. 30, 2019	1,339,638
Net (loss) income			361,000		361,000	350,000	711,000
Balance at Sep. 30, 2019	$ 134,000	8,808,000	(53,822,000)	(951,000)	(45,831,000)	(23,401,000)	(69,232,000)
Balance, shares at Sep. 30, 2019	1,339,638
Balance at Jun. 30, 2019	$ 134,000	8,808,000	(54,183,000)	(951,000)	(46,192,000)	(23,751,000)	(69,943,000)
Balance, shares at Jun. 30, 2019	1,339,638
Net (loss) income							(616,000)
Balance at Mar. 31, 2020	$ 144,000	7,895,000	(52,959,000)	(951,000)	(45,871,000)	(24,688,000)	(70,559,000)
Balance, shares at Mar. 31, 2020	1,437,138
Balance at Sep. 30, 2019	$ 134,000	8,808,000	(53,822,000)	(951,000)	(45,831,000)	(23,401,000)	(69,232,000)
Balance, shares at Sep. 30, 2019	1,339,638
Net (loss) income			115,000		115,000	152,000	267,000
Balance at Dec. 31, 2019	$ 134,000	8,808,000	(53,707,000)	(951,000)	(45,716,000)	(23,249,000)	(68,965,000)
Balance, shares at Dec. 31, 2019	1,339,638
Net (loss) income			(1,158,000)		(1,158,000)	(436,000)	(1,594,000)
Investment in Woodland	$ 10,000	(913,000)	1,906,000		1,003,000	(1,003,000)
Investment in Woodland, shares	97,500
Balance at Mar. 31, 2020	$ 144,000	$ 7,895,000	$ (52,959,000)	$ (951,000)	$ (45,871,000)	$ (24,688,000)	$ (70,559,000)
Balance, shares at Mar. 31, 2020	1,437,138