Face (par) amount of debt instrument at time of issuance.

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-Name Accounting Standards Codification
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-Section 55
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Weighted average interest rate of long-term debt outstanding.

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Fair value portion of mortgage loans held-for-sale.

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The number of real estate properties owned as of the balance sheet date.

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DEBT OBLIGATIONS - Mortgage Payable (Details)										12 Months Ended
DEBT OBLIGATIONS - Mortgage Payable (Details)	Sep. 16, 2016 USD ($)	Sep. 01, 2016 USD ($)	Aug. 15, 2016 USD ($)	May 31, 2016 USD ($)	May 11, 2016 USD ($)	May 06, 2016 USD ($)	Feb. 29, 2016 USD ($)	Feb. 01, 2016 USD ($)	Jan. 22, 2016 USD ($)	Sep. 30, 2016 USD ($) property	Apr. 15, 2016 USD ($)	Feb. 09, 2016 USD ($)	Nov. 18, 2015 USD ($)	Nov. 10, 2015 USD ($)	Oct. 13, 2015 USD ($)	Sep. 30, 2015 USD ($)
Debt Instrument [Line Items]
Debt, long-term and short-term debt, combined amount										$ 652,507,000						$ 507,385,000
Deferred mortgage costs										(6,275,000)						(5,327,000)
Mortgages held for sale										$ 27,052,000
Number of properties owned and operated \| property										33
Mortgages
Debt Instrument [Line Items]
Debt face amount										$ 238,212,000
Mortgages \| Multi-family residential
Debt Instrument [Line Items]
Number of properties owned and operated \| property										33
Debt, weighted average interest rate										3.98%
Average maturity										7 years
Maturities of Long-term Debt [Abstract]
2017										$ 5,649,000
2018										6,828,000
2019										127,067,000
2020										32,431,000
2021										46,683,000
Thereafter										402,724,000
Total debt obligations										621,382,000
Junior subordinated notes
Debt Instrument [Line Items]
Debt, long-term and short-term debt, combined amount										37,400,000						37,400,000
Deferred mortgage costs										(402,000)						(422,000)
Mortgages
Debt Instrument [Line Items]
Debt, long-term and short-term debt, combined amount										621,382,000						475,312,000
Deferred mortgage costs										(5,873,000)						$ (4,905,000)
Additional mortgages obtained \| Mortgages
Debt Instrument [Line Items]
Debt face amount										$ 14,709,000
LaGrange, GA \| Mortgages Maturing in February 2022 \| Mortgages
Debt Instrument [Line Items]
Debt face amount													$ 16,051,000
Interest rate (as a percent)													4.36%
Katy, TX \| Mortgages Maturing in February 2026 \| Mortgages
Debt Instrument [Line Items]
Debt face amount									$ 30,750,000
Interest rate (as a percent)									4.44%
Average maturity									60 months
Macon, GA \| Mortgages Maturing in February 2026 \| Mortgages
Debt Instrument [Line Items]
Debt face amount								$ 11,200,000
Interest rate (as a percent)								4.39%
Average maturity								24 months
Southaven, MS (Location 1) \| Mortgages Maturing in March 2026 \| Mortgages
Debt Instrument [Line Items]
Debt face amount							$ 28,000,000
Interest rate (as a percent)							4.24%
Average maturity							60 months
San Antonio, TX (Location 1) \| Mortgages Maturing in May 2023 \| Mortgages
Debt Instrument [Line Items]
Debt face amount						$ 26,400,000
Interest rate (as a percent)						3.61%
Average maturity						23 months
Dallas, TX \| Mortgages Maturing in May 2028 \| Mortgages
Debt Instrument [Line Items]
Debt face amount					$ 27,938,000
Interest rate (as a percent)					4.01%
Average maturity					24 months
Columbia, SC (Location 1) \| Mortgages Maturing in June 2026 \| Mortgages
Debt Instrument [Line Items]
Debt face amount				$ 12,934,000
Interest rate (as a percent)				4.28%
Average maturity				36 months
Atlanta, GA (Location 2) \| Mortgages Maturing in August 2026 \| Mortgages
Debt Instrument [Line Items]
Debt face amount			$ 27,375,000
Interest rate (as a percent)			3.97%
Average maturity			36 months
Southaven, MS (Location 2) \| Mortgages Maturing in September 2026 \| Mortgages
Debt Instrument [Line Items]
Debt face amount		$ 30,564,000
Interest rate (as a percent)		3.73%
Average maturity		60 months
San Antonio, TX (Location 2) \| Mortgages Maturing in September 2026 \| Mortgages
Debt Instrument [Line Items]
Debt face amount	$ 27,000,000
Interest rate (as a percent)	4.05%
Average maturity	36 months
Pensacola, FL \| Mortgages Maturing in March 2022 \| Mortgages
Debt Instrument [Line Items]
Debt face amount															$ 3,194,000
Interest rate (as a percent)															4.92%
Atlanta, GA (Location 1) \| Mortgages Maturing in July 2021 \| Mortgages
Debt Instrument [Line Items]
Debt face amount														$ 5,000,000
Interest rate (as a percent)														4.93%
Houston, TX \| Mortgages Maturing in August 2021 \| Mortgages
Debt Instrument [Line Items]
Debt face amount												$ 3,865,000
Interest rate (as a percent)												4.94%
Huntsville, AL \| Mortgages Maturing in November 2023 \| Mortgages
Debt Instrument [Line Items]
Debt face amount											$ 2,650,000
Interest rate (as a percent)											5.29%