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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
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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