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, 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 income (loss)			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 income (loss)							978,000
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
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 income (loss)			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
Balance at Jun. 30, 2020	$ 144,000	7,895,000	(55,243,000)	(951,000)	(48,155,000)	(25,979,000)	(74,134,000)
Balance, shares at Jun. 30, 2020	1,437,138
Net income (loss)			6,208,000		6,208,000	(1,120,000)	5,088,000
Investment in Woodland		(979,000)			(979,000)		(979,000)
Investment in Woodland, shares
Balance at Sep. 30, 2020	$ 144,000	6,916,000	(49,035,000)	(951,000)	(42,926,000)	(27,099,000)	(70,025,000)
Balance, shares at Sep. 30, 2020	1,437,138
Balance at Jun. 30, 2020	$ 144,000	7,895,000	(55,243,000)	(951,000)	(48,155,000)	(25,979,000)	(74,134,000)
Balance, shares at Jun. 30, 2020	1,437,138
Net income (loss)							2,567,000
Balance at Dec. 31, 2020	$ 144,000	6,916,000	(50,366,000)	(951,000)	(44,257,000)	(28,289,000)	(72,546,000)
Balance, shares at Dec. 31, 2020	1,437,138
Balance at Sep. 30, 2020	$ 144,000	6,916,000	(49,035,000)	(951,000)	(42,926,000)	(27,099,000)	(70,025,000)
Balance, shares at Sep. 30, 2020	1,437,138
Net income (loss)			(1,331,000)		(1,331,000)	(1,190,000)	(2,521,000)
Balance at Dec. 31, 2020	$ 144,000	$ 6,916,000	$ (50,366,000)	$ (951,000)	$ (44,257,000)	$ (28,289,000)	$ (72,546,000)
Balance, shares at Dec. 31, 2020	1,437,138