This element represents mortgaged area of real estate property.

No definition available.

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Debt Covenant, Percentage of Proceeds from Sale of Land

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Debt Instrument, Extension Fee Amount

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Long-term Debt Transferred

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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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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Amount of the cost of borrowed funds accounted for as interest expense.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

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Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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No definition available.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of a type of municipal bond typically used to fund a development project. Also called special assessment limited liability bond, special district bond, special purpose bond, special tax bond and community development obligation. Interest owed to lenders is paid by taxes levied on the community benefiting from the particular bond-funded project. For example, if a bond of this sort was issued to pay for sidewalks to be repaved in a certain community, an additional tax would be levied on homeowners in the area benefiting from this project.

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NOTES PAYABLE AND SPECIAL ASSESSMENT OBLIGATIONS (Details Textual) $ in Thousands	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2017 USD ($) a	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Interest Expense	$ 400		$ 2,300		$ 2,400	$ 6,700
Notes payable	14,787				14,787		$ 14,046
Debt discount amortization					610	530
Interest Payable	431				431		379
Debt	17,707				17,707
Payments to acquire real estate								$ 6,800
Special assessment bond	3,051				3,051		3,581
Cfd Obligation One [Member]
Debt Instrument [Line Items]
Debt payments					$ 100		$ 100
Area of property mortgaged (in acres) \| a					171
Cfd Obligation [Member]
Debt Instrument [Line Items]
Real estate held-for-sale	6,100				$ 6,100
Cfd Obligation Two [Member]
Debt Instrument [Line Items]
Debt payments					$ 200
Area of property mortgaged (in acres) \| a					1.5
Value of property	100				$ 100
Obligations transferred					200
50 Million Non-recourse Note Payable [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt amount	$ 50,000				$ 50,000
Stated rate (percentage)	7.25%				7.25%
5.4 Million Note Payable [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Stated rate (percentage)				4.50%				4.50%
Debt				$ 5,400				$ 5,400
Loans pledged as collateral				7,200				$ 7,200
5.9 Million Note Payable [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Variable rate (percent)					2.00%			2.00%
Debt amount	$ 0			$ 5,900	$ 0			$ 5,900
Stated rate (percentage)	5.50%				5.50%
Community Facility District Bonds [Member]
Debt Instrument [Line Items]
Debt amount	$ 3,700				$ 3,700
Community Facility District Bonds [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Stated rate (percentage)	6.00%				6.00%
Community Facility District Bonds [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Stated rate (percentage)	5.00%				5.00%
Special Assessment Bonds [Member]
Debt Instrument [Line Items]
Debt amount	$ 2,300				$ 2,300
Special assessment bond	$ 131				$ 131
Special Assessment Bonds [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Stated rate (percentage)	7.50%				7.50%
Special Assessment Bonds [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Stated rate (percentage)	6.00%				6.00%
SRE Monarch Lending [Member] \| SRE Revolver [Member]
Debt Instrument [Line Items]
Stated rate (percentage)							0.00%
Proceeds from line of credit							$ 4,000
Payments of debt issuance costs							$ 500
Percentage of proceeds from sale of land							5.00%
Repayments of debt		$ 200
Non-Revolving Credit Facility [Member] \| SRE Monarch Lending [Member]
Debt Instrument [Line Items]
Extension fee paid						500
Non-Revolving Credit Facility [Member] \| SRE Monarch Lending [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt amount									$ 5,000
LIBOR [Member] \| 50 Million Non-recourse Note Payable [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Variable rate (percent)					6.75%
Prime Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Variable rate (percent)							8.00%
Prime Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Variable rate (percent)					6.25%		2.00%
Prime Rate [Member] \| 5.4 Million Note Payable [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Variable rate (percent)				1.25%
Prime Rate [Member] \| 5.9 Million Note Payable [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Variable rate (percent)					3.00%			3.00%
Discontinued Operations [Member]
Debt Instrument [Line Items]
Interest Expense	$ 0		$ 1,100		$ 1,100	$ 3,200
Discontinued Operations, Held-for-sale [Member]
Debt Instrument [Line Items]
Special assessment bond	2,920				2,920		$ 3,581
Discontinued Operations, Held-for-sale [Member] \| Community Facility District Bonds [Member]
Debt Instrument [Line Items]
Special assessment bond	2,920				2,920		3,067
Discontinued Operations, Held-for-sale [Member] \| Special Assessment Bonds [Member]
Debt Instrument [Line Items]
Special assessment bond	$ 0				$ 0		$ 514