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Allowance for Doubtful Accounts (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Allowance for Doubtful Accounts
Provision for unbilled rent receivable				$ 1,440,000
Balance in allowance for doubtful accounts						$ 0
Bad debt expense		$ 0		$ 0	$ 310,000
Write-off of unbilled rent receivable	$ 74,000				362,000
Write-off of unamortized intangible lease assets					67,000
Write off of tenant origination costs					884,000
Impairment loss			$ 153,000		153,000
Real Estate Property In Ann Arbor Michigan
Allowance for Doubtful Accounts
Impairment loss			$ 153,000		$ 153,000

X

- Definition

Amount of allowance related to estimated loss from rent receivable transactions.

+ References

No definition available.

+ Details

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X

- Definition

Represents information pertaining to write-off of tenant origination costs.

+ References

No definition available.

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X

- Definition

Represents the amount of unamortized intangible lease assets written off during the period.

+ References

No definition available.

+ Details

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X

- Definition

Represents the amount of unbilled rent receivable written off during the period.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

No definition available.

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
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- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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- Definition

Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

+ References

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