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Leases - Summary (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) lease	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) lease	Sep. 30, 2019 USD ($)
Leases
Number of operating leases | lease	2		2
Operating Expenses
Leases
Rent expense - ASC 842 | $	$ 84,482	$ 38,734	$ 241,807	$ 166,518

X

- Definition

The number of operating leases held by the Company.

+ References

No definition available.

+ Details

Name:	apre_LesseeOperatingLeaseNumberOfOperatingLeases
Namespace Prefix:	apre_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- 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:	us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977

+ Details

Name:	us-gaap_OperatingLeaseExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_OperatingExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: