CumulativeEquityInIncomeOfUnconsolidatedAffiliate

No definition available.

Name:	apt_CumulativeEquityInIncomeOfUnconsolidatedAffiliate
Namespace Prefix:	apt_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Purchases from our Joint venture.

+ References

No definition available.

+ Details

Name:	apt_ExpenseToAcquireInventory
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Data Type:	xbrli:monetaryItemType
Balance Type:	na
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- Definition

Represents the number of stores owned.

+ References

No definition available.

+ Details

Name:	apt_NumberOfStoresOwned
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- Definition

Represents the number of stores rented.

+ References

No definition available.

+ Details

Name:	apt_NumberOfStoresRented
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Data Type:	xbrli:pureItemType
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Period Type:	instant

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:areaItemType
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Period Type:	instant

- Definition

This element represents the aggregate cost of investments accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

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

- Definition

Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

+ References

+ Details

Name:	us-gaap_EquityMethodInvestmentDividendsOrDistributions
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481664/323-10-45-1

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
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-Paragraph 3
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-Publisher FASB
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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of income (loss) for proportionate share of equity method investee's income (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the number of stores.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfStores
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 10
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

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- Details

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- Details

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- Details

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- Details

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Note 6 - Equity Investment in Unconsolidated Affiliate (Details Textual)	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($) ft²	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2005
Expense To Acquire Inventory	$ 5,036,000	$ 6,183,000
Proceeds from Sale of Productive Assets, Total	0	258,000
Income (Loss) from Equity Method Investments	$ 109,000	$ 49,000
INDIA \| Harmony [Member]
Number of Stores	4
Number Of Stores Owned	3
Number Of Stores Rented	1
INDIA \| Harmony [Member] \| Manufacturing Building Products [Member]
Area of Real Estate Property (Square Foot) \| ft²	139,000
INDIA \| Harmony [Member] \| Manufacturing Coated Material and Sewing Proprietary Disposable Protective Apparel [Member]
Area of Real Estate Property (Square Foot) \| ft²	121,000
INDIA \| Harmony [Member] \| Sewing Proprietary Disposable Protective Apparel [Member]
Area of Real Estate Property (Square Foot) \| ft²	23,000
INDIA \| Harmony [Member] \| Manufacturing Of Building Products [Member]
Area of Real Estate Property (Square Foot) \| ft²	159,000
Harmony [Member]
Equity Method Investment, Other than Temporary Impairment	$ 0		$ 0
Equity Method Investments	4,964,000
Equity Method Investment, Aggregate Cost	1,450,000
Cumulative Equity In Income Of Unconsolidated Affiliate	5,885,000
Proceeds from Equity Method Investment, Distribution, Return of Capital	942,000
Proceeds from Equity Method Investment, Distribution	$ 1,352,000
Harmony [Member] \| Alpha Pro Tech Engineered Products [Member]
Equity Method Investment, Ownership Percentage				41.66%
Harmony [Member] \| Maple Industries and Associates [Member]
Equity Method Investment, Ownership Percentage				58.34%