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Statements of Cash Flows (Unaudited) - USD ($) | 6 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Cash flows from operating activities |  |
Net loss | $ (4,413,172) | $ (3,456,066)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation | 94,866 | 101,992
Amortization of convertible note costs | 333,572 |
Loss on sales of property and equipment | 306 | 3,426
Decrease in allowance for doubtful accounts |  | (18,804)
Stock-based settlement | 209,000 | 251,680
Stock-based compensation | 438,923 |
Changes in operating assets and liabilities: |  |
Increase in accounts receivable | (198,071) | (92,359)
(Increase) / decrease in inventory | 463,558 | (437,190)
Increase in prepaid/in-transit inventory | (555,338) | (19,243)
Increase in prepaid expenses and other current assets | (27,242) | (12,178)
Increase in deposits |  | (2,795)
Increase / (decrease) in accounts payable | 145,566 | (10,759)
Increase / (decrease) in customer deposits | (3,329) | 156,881
Increase / (decrease) in accrued expenses and other current liabilities | 98,166 | (589)
Increase in right-of-use assets and lease liabilities | 6,929 | 14,477
Net cash used in operating activities | (3,406,266) | (3,521,527)
Cash flows from investing activities |  |
Purchases of property and equipment | (10,550) | (34,250)
Net proceeds from sales of property and equipment | 87,684 | 37,964
Net cash provided by investing activities | 77,134 | 3,714
Cash flows from financing activities |  |
Principal payments on convertible note | (365,671) |
Principal payments on long-term debt | (101,560) | (136,965)
Principal payments on stockholder promissory notes | (62,500) |
Net proceeds from exercise of warrants | (4) | 49,777
Net proceeds from issuance of common stock | 828,492 |
Net cash provided by / (used in) financing activities | 298,757 | (87,188)
Net change in cash and cash equivalents | (3,030,375) | (3,605,001)
Cash and cash equivalents, beginning | 3,932,698 | 7,201,244
Cash and cash equivalents, ending | 902,323 | 3,596,243
Supplemental disclosure of cash flow information: |  |
Cash paid for interest | 67,070 | 64,798
Cash paid / (refunded) for franchise taxes |  | (39)
Non-cash financing activities: |  |
Acquisition/modification of operating lease right-of-use asset and lease liability |  | (13,993)
Issuance of common stock for payment on accrued interest | 75,811 |
Issuance of common stock for payment on accrued compensation | 36,029 |
Issuance of common stock for settlement shares and vested RSUs | $ 65 |

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- References No definition available. + Details
Name: | xpon_PrincipalPaymentsOnStockholderPromissoryNotes
Namespace Prefix: | xpon_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | xpon_StockbasedSettlement
Namespace Prefix: | xpon_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration