CumulativeEquityInIncomeOfUnconsolidatedAffiliate

No definition available.

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

- Definition

Purchases from our Joint venture.

+ References

No definition available.

+ Details

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- Definition

Represents the number of stores owned.

+ References

No definition available.

+ Details

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- Definition

Represents the number of stores rented.

+ References

No definition available.

+ Details

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- Definition

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

+ References

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

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

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

- Definition

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

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

- Definition

Amount of other-than-temporary decline in value that has been recognized against investment accounted for under equity method of accounting.

+ References

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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

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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

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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).

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- Definition

Represents the number of stores.

+ References

No definition available.

+ Details

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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

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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

Name:	srt_ProductOrServiceAxis=apt_ManufacturingBuildingProductsMember
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- Details

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Note 6 - Equity Investments in Unconsolidated Affiliate (Details Textual)	9 Months Ended	12 Months Ended
	Sep. 30, 2025 USD ($)	Dec. 31, 2025 USD ($) ft²	Dec. 31, 2024 USD ($)	Dec. 31, 2005
Income (Loss) from Equity Method Investments		$ 182,000	$ 629,000
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
Expense To Acquire Inventory		19,397,000	22,080,000
Income (Loss) from Equity Method Investments		182,000	629,000
Proceeds from Sale of Productive Assets		628,000	$ 839,000
Equity Method Investments		5,548,000
Equity Method Investment, Aggregate Cost		1,450,000
Cumulative Equity In Income Of Unconsolidated Affiliate		7,064,000
Proceeds from Equity Method Investment, Distribution, Return of Capital		$ 942,000
Proceeds from Equity Method Investment, Distribution	$ 77,000
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ (1,947,000)
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%