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Period Type:	instant

- Definition

Line Of Credit Amount Collateralized By Principals, Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	apts_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

line of credit receivable

+ References

No definition available.

+ Details

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Namespace Prefix:	apts_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Payments for Line of Credit, Required Payments

+ References

No definition available.

+ Details

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Namespace Prefix:	apts_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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.

+ Details

Name:	srt_MortgageLoansOnRealEstateLineItems
Namespace Prefix:	srt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=apts_ShoppingCenterInAtlantaGeorgiaMember
Namespace Prefix:
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Real Estate Loans, Notes Receivable, and Lines of Credit phantom facts (Details) - USD ($)		3 Months Ended	9 Months Ended
	Jul. 31, 2020	Mar. 31, 2020	Sep. 30, 2020	Dec. 31, 2019	Mar. 23, 2018
Mortgage Loans on Real Estate [Line Items]
line of credit receivable				$ 41,917,000
Deferred interest rate		3.85%	3.84%
current interest rate		8.48%	8.50%
Line of Credit Facility, Maximum Borrowing Capacity					$ 200,000,000
Oxford Capital Partners LLC [Member]
Mortgage Loans on Real Estate [Line Items]
line of credit receivable			$ 8,000,000
interest rate note receivable			10.00%
Line Of Credit Amount Collateralized By Principals, Percentage			25.00%
Payments for Line of Credit, Required Payments	$ 5,000,000.0
Amount Collateralized By Principals			$ 2,000,000.0
HCC [Member]
Mortgage Loans on Real Estate [Line Items]
line of credit receivable			$ 11,660,000
interest rate note receivable			8.00%
HCC [Member] \| Shopping Center In Atlanta Georgia [Member]
Mortgage Loans on Real Estate [Line Items]
Equity Method Investment, Ownership Percentage			49.49%
newport development partners [Member]
Mortgage Loans on Real Estate [Line Items]
line of credit receivable			$ 1,000,000
interest rate note receivable			12.00%