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Stockholder Promissory Notes (Details Narrative) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Stockholder Promissory Notes
Interest paid to the stockholders	$ 17,501	$ 20,627	$ 35,499	$ 41,254

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- Definition

The contractual amount of dividends (or interest on participating income bonds) that must be paid for the current period (for example, unpaid cumulative dividends).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 60B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482689/260-10-45-60B

+ Details

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

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- References

No definition available.

+ Details

Name:	xpon_DisclosureStockholderPromissoryNotesAbstract
Namespace Prefix:	xpon_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration