MORTGAGE NOTES PAYABLE - Mortgage note payable (Details)	12 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)
Debt Disclosure [Line Items]
Total mortgage notes payable - Hotel	$ 113,087,000	$ 114,372,000
Total mortgage notes payable - real estate	58,571,000	62,873,000
Mortgage Notes Payable Real Estate [Member]
Debt Disclosure [Line Items]
Mortgage notes payable - real estate	58,844,000	63,219,000
Debt issuance costs	(273,000)	(346,000)
Total mortgage notes payable - real estate	58,571,000	62,873,000
Mortgage Notes Payable Hotel [Member]
Debt Disclosure [Line Items]
Mortgage notes payable - Hotel	113,746,000	115,018,000
Total mortgage notes payable - Hotel	113,087,000	114,372,000
Debt issuance costs	$ (659,000)	$ (646,000)
5.28% SF Hotel [Member]
Debt Disclosure [Line Items]
Number of Units	544	544
Origination Date	December 2013	December 2013
Maturity Date	January 2024	January 2024
Interest Rate	5.28%	5.28%
Mortgage notes payable - Hotel	$ 93,746,000	$ 95,018,000
9.75% SF Hotel [Member]
Debt Disclosure [Line Items]
Number of Units	544	544
Origination Date	December 2013	December 2013
Maturity Date	January 2024	January 2024
Interest Rate	9.75%	9.75%
Mortgage notes payable - Hotel	$ 20,000,000	$ 20,000,000
3.87% Florence [Member]
Debt Disclosure [Line Items]
Number of Units	157	157
Origination Date	March 2015	March 2015
Maturity Date	April 2025	April 2025
Interest Rate	3.87%	3.87%
Mortgage notes payable - real estate	$ 3,222,000	$ 3,291,000
3.73% Las Colinas [Member]
Debt Disclosure [Line Items]
Number of Units	358	358
Origination Date	November 2012	November 2012
Maturity Date	December 2022	December 2022
Interest Rate	3.73%	3.73%
Mortgage notes payable - real estate	$ 16,974,000	$ 17,404,000
3.51% Morris County [Member]
Debt Disclosure [Line Items]
Number of Units	151	151
Origination Date	July 2012	July 2012
Maturity Date	August 2022	August 2022
Interest Rate	3.51%	3.51%
Mortgage notes payable - real estate	$ 8,737,000	$ 9,068,000
4.51% Morris County [Member]
Debt Disclosure [Line Items]
Number of Units	151	151
Origination Date	June 2014	June 2014
Maturity Date	August 2022	August 2022
Interest Rate	4.51%	4.51%
Mortgage notes payable - real estate	$ 2,512,000	$ 2,563,000
4.05% St. Louis [Member]
Debt Disclosure [Line Items]
Number of Units	264	264
Origination Date	May 2013	May 2013
Maturity Date	May 2023	May 2023
Interest Rate	4.05%	4.05%
Mortgage notes payable - real estate	$ 5,365,000	$ 5,491,000
3.75% Los Angeles One [Member]
Debt Disclosure [Line Items]
Number of Units	4	4
Origination Date	September 2012	September 2012
Maturity Date	September 2042	September 2042
Interest Rate	3.75%	3.75%
Mortgage notes payable - real estate	$ 343,000	$ 352,000
3.75% Los Angeles Two [Member]
Debt Disclosure [Line Items]
Number of Units	2	2
Origination Date	September 2012	September 2012
Maturity Date	September 2042	September 2042
Interest Rate	3.75%	3.75%
Mortgage notes payable - real estate	$ 347,000	$ 356,000
3.75% Los Angeles Three [Member]
Debt Disclosure [Line Items]
Number of Units	1	1
Origination Date	August 2012	August 2012
Maturity Date	September 2042	September 2042
Interest Rate	3.75%	3.75%
Mortgage notes payable - real estate	$ 373,000	$ 383,000
4.85% Los Angeles [Member]
Debt Disclosure [Line Items]
Number of Units	31	31
Origination Date	November 2010	November 2010
Maturity Date	December 2020	December 2020
Interest Rate	4.85%	4.85%
Mortgage notes payable - real estate	$ 4,927,000	$ 5,048,000
5.97% Los Angeles [Member]
Debt Disclosure [Line Items]
Number of Units	30	30
Origination Date	August 2007	August 2007
Maturity Date	September 2022	September 2022
Interest Rate	5.97%	5.97%
Mortgage notes payable - real estate	$ 5,765,000	$ 5,907,000
4.85% Los Angeles Two [Member]
Debt Disclosure [Line Items]
Number of Units		27
Origination Date		November 2010
Maturity Date		December 2020
Interest Rate		4.85%
Mortgage notes payable - real estate		$ 2,843,000
5.89% Los Angeles [Member]
Debt Disclosure [Line Items]
Number of Units	14	14
Origination Date	April 2011	April 2011
Maturity Date	March 2021	March 2021
Interest Rate	5.89%	5.89%
Mortgage notes payable - real estate	$ 1,632,000	$ 1,665,000
3.59% Los Angeles [Member]
Debt Disclosure [Line Items]
Number of Units	12	12
Origination Date	June 2016	June 2016
Maturity Date	June 2026	June 2026
Interest Rate	3.59%	3.59%
Mortgage notes payable - real estate	$ 2,172,000	$ 2,218,000
5.6% Los Angeles [Member]
Debt Disclosure [Line Items]
Number of Units	9	9
Origination Date	April 2011	April 2011
Maturity Date	May 2021	May 2021
Interest Rate	5.60%	5.60%
Mortgage notes payable - real estate	$ 1,303,000	$ 1,331,000
5.89% Los Angeles Two [Member]
Debt Disclosure [Line Items]
Number of Units	9	9
Origination Date	April 2011	April 2011
Maturity Date	March 2021	March 2021
Interest Rate	5.89%	5.89%
Mortgage notes payable - real estate	$ 1,112,000	$ 1,135,000
3.75% Los Angeles Four [Member]
Debt Disclosure [Line Items]
Number of Units	8	8
Origination Date	July 2013	July 2013
Maturity Date	July 2043	July 2043
Interest Rate	3.75%	3.75%
Mortgage notes payable - real estate	$ 440,000	$ 451,000
3.75% Los Angeles Five [Member]
Debt Disclosure [Line Items]
Number of Units	7	7
Origination Date	August 2012	August 2012
Maturity Date	September 2042	September 2042
Interest Rate	3.75%	3.75%
Mortgage notes payable - real estate	$ 846,000	$ 868,000
3.75% Los Angeles Six [Member]
Debt Disclosure [Line Items]
Number of Units	4	4
Origination Date	August 2012	August 2012
Maturity Date	September 2042	September 2042
Interest Rate	3.75%	3.75%
Mortgage notes payable - real estate	$ 579,000	$ 594,000
3.75% Los Angeles Seven [Member]
Debt Disclosure [Line Items]
Number of Units	1	1
Origination Date	September 2012	September 2012
Maturity Date	September 2042	September 2042
Interest Rate	3.75%	3.75%
Mortgage notes payable - real estate	$ 399,000	$ 409,000
4.75% Los Angeles[Member]
Debt Disclosure [Line Items]
Number of Units	1
Origination Date	August 2016
Maturity Date	August 2018
Interest Rate	4.75%
Mortgage notes payable - real estate	$ 990,000
4.55% Loss Angeles [Member]
Debt Disclosure [Line Items]
Number of Units		1
Origination Date		April 2016
Maturity Date		January 2021
Interest Rate		4.55%
Mortgage notes payable - real estate		$ 842,000
4.91% Los Angeles [Member]
Debt Disclosure [Line Items]
Number of Units	1
Origination Date	April 2016
Maturity Date	January 2021
Interest Rate	4.91%
Mortgage notes payable - real estate	$ 806,000
5.75% Los Angeles [Member]
Debt Disclosure [Line Items]
Number of Units		1
Origination Date		August 2016
Maturity Date		August 2018
Interest Rate		5.75%
Mortgage notes payable - real estate		$ 1,000,000