Short-term Borrowings	6 Months Ended
Jun. 30, 2025
Debt Disclosure [Abstract]
Short-term Borrowings	9. Short-term Borrowings Financing with Agile Capital On March 12, 2024, the Group entered into a Subordinated Business Loan and Security Agreement (“Term Loan”) with Agile Capital Funding, LLC (“Agile Capital”) as collateral agent, and Agile Lending, LLC, a Virginia limited liability company (“Lead Lender”) and each assignee that becomes a party to this agreement (each individually with the Lead Lender, a “Lender” and collectively with the Lead Lender, the “Lenders”). The total principal amount of the Term Loan is $2,363, including the administrative agent fee remitted to Agile Capital of $113. The net proceeds to the Group is $2,250. The total repayment amount of the Term Loan, including all interest, lender fees, and third-party fees, assuming all payments are made on time is $3,402, including the interest charge of $1,039, assuming all payments are made on time weekly, and the default interest rate is otherwise applicable thereto plus five percentage points (5.00%). The collateral of the Term Loan consists of all of the Group’s right, title and interest in and to the following property: All of the Group’s goods, accounts, equipment, inventory, contract rights or rights to payment of money, leases, license agreements, franchise agreements, general intangibles (including Intellectual Property), commercial tort claims, documents, instruments (including any promissory notes), chattel paper (whether tangible or electronic), cash, deposit accounts and other collateral accounts, all certificates of deposit, fixtures, letters of credit rights (whether or not the letter of credit is evidenced by a writing), securities, and all other investment property, supporting obligations, and financial assets, whether now owned or hereafter acquired, wherever located; and all of the Group’s books and records relating to the foregoing, and any and all claims, rights and interests in any of the above and all substitutions for, additions, attachments, accessories, accessions and improvements to and replacements, products, proceeds and insurance proceeds of any or all of the foregoing. If changes in business or management, ownership occur, or the Term Loan is accelerated following the occurrence of an Event of Default (as defined in the Term Loan), the Group shall immediately pay to Lenders, payable to each Lender in accordance with its respective pro rata share, an amount equal to the sum of: (i) all outstanding principal of the Term Loans plus accrued and unpaid interest thereon accrued through the prepayment date, (ii) the prepayment fee (equal to the aggregate and actual amount of interest that would be paid through the maturity date), plus (iii) all other obligations that are due and payable, including, without limitation, interest at the default rate with respect to any past due amounts. As of December 31, 2024, the loan principal balance to Agile Capital was $718. In March 2025, the Group paid $950 including $718 loan principal balance and $232 accrued interest and other fees to pay off the loan balance according to a settlement agreement made between the Group and Agile Capital. Financing with Dynasty Capital 26, LLC On July 25, 2024, the Group entered into a Future Receivables Sale and Purchase Agreement with Dynasty Capital 26, LLC (“Dynasty”). In the agreement, the Group irrevocably assigns, transfers and conveys onto Dynasty all of the Group’s right, title and interest in the specified percentage of the future receipts until the purchased amount shall have been delivered by the Group to Dynasty (“Dynasty Purchased Future Receipts”). This sale of the Dynasty Purchased Future Receipts is made without express or implied warranty to Dynasty of collectability of the Dynasty Purchased Future Receipts and without recourse against the Group and/or guarantor, except as specifically set forth in the agreement. By virtue of the agreement, the Group transfers to Dynasty full and complete ownership of the Dynasty Purchased Future Receipts and the Group retains no legal or equitable interest therein. The total purchase price is $500, including all initial costs and fees remitted to Dynasty of $50. The net proceeds to the Group is $450. The total amount of receivables sold is $750. On July 31, 2024, an addendum was made between the Group and Dynasty to specify that the payment in the first week would be $22 and weekly payment of $47 for every following week. The Group made the first weekly payment of $22 and two weekly payments of $47 in August 2024. On August 29, 2024, a settlement agreement was made between the Group and Dynasty to reduce the Group’s obligation for payment to $600, with the first payment of $100 in August and twenty (20) consecutive weekly installments of $25. On December 4, 2024, another settlement agreement was made between the Group and Dynasty to reduce the Group’s obligation for payment to $350, with the first two payments of $22 and $28, respectively, in December and twelve (12) consecutive weekly installments of $25. As of December 31, 2024, the loan principal balance to Dynasty was $161. In March 2025, the Group paid $245 including $161 loan principal balance and $84 accrued interest and other fees to pay off the loan balance according to a settlement agreement made between the Group and Dynasty. Financing with Parkview Advance LLC On July 31, 2024, the Group entered into a Future Receivables Sale and Purchase Agreement with Parkview Advance LLC (“Parkview”). In the agreement, the Group irrevocably assigns, transfers and conveys onto Parkview all of the Group’s right, title and interest in the specified percentage of the future receipts until the purchased amount shall have been delivered by the Group to Parkview (“Parkview Purchased Future Receipts”). This sale of the Parkview Purchased Future Receipts is made without express or implied warranty to Parkview of collectability of the Parkview Purchased Future Receipts and without recourse against the Group and/or guarantor, except as specifically set forth in the agreement. By virtue of the agreement, the Group transfers to Parkview full and complete ownership of the Parkview Purchased Future Receipts and the Group retains no legal or equitable interest therein. The total purchase price is $400, including all initial costs and fees remitted to Parkview of $20. The net proceeds to the Group is $380. The total amount of receivables sold is $600. Pursuant to the original agreement, if the borrower fails to pay any principal or interest on its due date, or fails to pay any other obligation within three business days after it becomes due and payable, it constitutes a payment default. During the continuation of an Event of Default, the Group shall agree to pay reasonable damage which is 25% of the undelivered portion of the purchased amount. The entire sum due shall bear simple interest from the default date until it is paid in full, at a rate of 9% per annum, with interest accruing daily. The lender may declare the entire unpaid principal balance of the loan, together with all accrued interest thereon and any other charges or fees payable thereunder, immediately due and payable by providing written notice to the borrower. As of December 31, 2024, the loan principal balance to Parkview was $131. On March 13, 2025, the Group paid $196 including $131 loan principal balance and $65 accrued interest and other fees to pay off the loan balance according to a settlement agreement made between the Group and Parkview. Financing with Nations Bus On February 27, 2024, the Group entered into a financing agreement with Nations Bus Corp. (“Nations Bus”). In the agreement, it stated that the Group had purchased certain assets of Proterra Transit, including 6 buses in inventory. Raleigh-Durham International Airport (“RDU”) has inspected the buses and has executed a contract to purchase them for $652 each for a total consideration of $3,909. Nations Bus lent and wired $1,900 to the Group on February 28, 2024. The Group agrees to wire Nations Bus $2,800 ($467 per bus) within 24 hours of receipt of payment for each bus from RDU. If payment is made separately by bus, then the Group will wire $467 within 24 hours of receipt. If payment is received in one lump sum of $3,909, the Group will wire $2,800 within 24 hours of receipt. The Group received a total of $3,909 from RDU in March 2024. The Group will be entitled to keep the remaining $1,109 received from RDU after payment is made to Nations Bus. The Group has repaid $2,800 to Nations Bus in April and May 2024, including $900 accrued interests. Financing with Wisdom The Group entered into a short-term loan agreement with total principal amount of $961 on December 11, 2023 with Wisdom Financial holdings Company Ltd (“Wisdom”). The short-term loan was used to pay deposit to purchase Proterra assets (see Note 4). The principal amount of the loan was fully paid off on January 8, 2024 by cash. Total interest expense of the loan was $279, in which $9 was paid off in January 2024 by cash, and $270 was settled by issuance of 180,202 shares of common stock of the Company in January 2024.

Short-term Borrowings

6 Months Ended

Jun. 30, 2025

9. Short-term Borrowings

Financing with Agile Capital

On March 12, 2024, the Group entered into a Subordinated Business Loan and Security Agreement (“Term Loan”) with Agile Capital Funding, LLC (“Agile Capital”) as collateral agent, and Agile Lending, LLC, a Virginia limited liability company (“Lead Lender”) and each assignee that becomes a party to this agreement (each individually with the Lead Lender, a “Lender” and collectively with the Lead Lender, the “Lenders”).

The total principal amount of the Term Loan is $2,363, including the administrative agent fee remitted to Agile Capital of $113. The net proceeds to the Group is $2,250. The total repayment amount of the Term Loan, including all interest, lender fees, and third-party fees, assuming all payments are made on time is $3,402, including the interest charge of $1,039, assuming all payments are made on time weekly, and the default interest rate is otherwise applicable thereto plus five percentage points (5.00%).

The collateral of the Term Loan consists of all of the Group’s right, title and interest in and to the following property:

All of the Group’s goods, accounts, equipment, inventory, contract rights or rights to payment of money, leases, license agreements, franchise agreements, general intangibles (including Intellectual Property), commercial tort claims, documents, instruments (including any promissory notes), chattel paper (whether tangible or electronic), cash, deposit accounts and other collateral accounts, all certificates of deposit, fixtures, letters of credit rights (whether or not the letter of credit is evidenced by a writing), securities, and all other investment property, supporting obligations, and financial assets, whether now owned or hereafter acquired, wherever located; and all of the Group’s books and records relating to the foregoing, and any and all claims, rights and interests in any of the above and all substitutions for, additions, attachments, accessories, accessions and improvements to and replacements, products, proceeds and insurance proceeds of any or all of the foregoing.

If changes in business or management, ownership occur, or the Term Loan is accelerated following the occurrence of an Event of Default (as defined in the Term Loan), the Group shall immediately pay to Lenders, payable to each Lender in accordance with its respective pro rata share, an amount equal to the sum of: (i) all outstanding principal of the Term Loans plus accrued and unpaid interest thereon accrued through the prepayment date, (ii) the prepayment fee (equal to the aggregate and actual amount of interest that would be paid through the maturity date), plus (iii) all other obligations that are due and payable, including, without limitation, interest at the default rate with respect to any past due amounts.

As of December 31, 2024, the loan principal balance to Agile Capital was $718. In March 2025, the Group paid $950 including $718 loan principal balance and $232 accrued interest and other fees to pay off the loan balance according to a settlement agreement made between the Group and Agile Capital.

Financing with Dynasty Capital 26, LLC

On July 25, 2024, the Group entered into a Future Receivables Sale and Purchase Agreement with Dynasty Capital 26, LLC (“Dynasty”). In the agreement, the Group irrevocably assigns, transfers and conveys onto Dynasty all of the Group’s right, title and interest in the specified percentage of the future receipts until the purchased amount shall have been delivered by the Group to Dynasty (“Dynasty Purchased Future Receipts”). This sale of the Dynasty Purchased Future Receipts is made without express or implied warranty to Dynasty of collectability of the Dynasty Purchased Future Receipts and without recourse against the Group and/or guarantor, except as specifically set forth in the agreement. By virtue of the agreement, the Group transfers to Dynasty full and complete ownership of the Dynasty Purchased Future Receipts and the Group retains no legal or equitable interest therein.

The total purchase price is $500, including all initial costs and fees remitted to Dynasty of $50. The net proceeds to the Group is $450. The total amount of receivables sold is $750. On July 31, 2024, an addendum was made between the Group and Dynasty to specify that the payment in the first week would be $22 and weekly payment of $47 for every following week. The Group made the first weekly payment of $22 and two weekly payments of $47 in August 2024. On August 29, 2024, a settlement agreement was made between the Group and Dynasty to reduce the Group’s obligation for payment to $600, with the first payment of $100 in August and twenty (20) consecutive weekly installments of $25. On December 4, 2024, another settlement agreement was made between the Group and Dynasty to reduce the Group’s obligation for payment to $350, with the first two payments of $22 and $28, respectively, in December and twelve (12) consecutive weekly installments of $25.

As of December 31, 2024, the loan principal balance to Dynasty was $161. In March 2025, the Group paid $245 including $161 loan principal balance and $84 accrued interest and other fees to pay off the loan balance according to a settlement agreement made between the Group and Dynasty.

Financing with Parkview Advance LLC

On July 31, 2024, the Group entered into a Future Receivables Sale and Purchase Agreement with Parkview Advance LLC (“Parkview”). In the agreement, the Group irrevocably assigns, transfers and conveys onto Parkview all of the Group’s right, title and interest in the specified percentage of the future receipts until the purchased amount shall have been delivered by the Group to Parkview (“Parkview Purchased Future Receipts”). This sale of the Parkview Purchased Future Receipts is made without express or implied warranty to Parkview of collectability of the Parkview Purchased Future Receipts and without recourse against the Group and/or guarantor, except as specifically set forth in the agreement. By virtue of the agreement, the Group transfers to Parkview full and complete ownership of the Parkview Purchased Future Receipts and the Group retains no legal or equitable interest therein.

The total purchase price is $400, including all initial costs and fees remitted to Parkview of $20. The net proceeds to the Group is $380. The total amount of receivables sold is $600. Pursuant to the original agreement, if the borrower fails to pay any principal or interest on its due date, or fails to pay any other obligation within three business days after it becomes due and payable, it constitutes a payment default. During the continuation of an Event of Default, the Group shall agree to pay reasonable damage which is 25% of the undelivered portion of the purchased amount. The entire sum due shall bear simple interest from the default date until it is paid in full, at a rate of 9% per annum, with interest accruing daily. The lender may declare the entire unpaid principal balance of the loan, together with all accrued interest thereon and any other charges or fees payable thereunder, immediately due and payable by providing written notice to the borrower.

As of December 31, 2024, the loan principal balance to Parkview was $131. On March 13, 2025, the Group paid $196 including $131 loan principal balance and $65 accrued interest and other fees to pay off the loan balance according to a settlement agreement made between the Group and Parkview.

Financing with Nations Bus

On February 27, 2024, the Group entered into a financing agreement with Nations Bus Corp. (“Nations Bus”). In the agreement, it stated that the Group had purchased certain assets of Proterra Transit, including 6 buses in inventory. Raleigh-Durham International Airport (“RDU”) has inspected the buses and has executed a contract to purchase them for $652 each for a total consideration of $3,909. Nations Bus lent and wired $1,900 to the Group on February 28, 2024. The Group agrees to wire Nations Bus $2,800 ($467 per bus) within 24 hours of receipt of payment for each bus from RDU. If payment is made separately by bus, then the Group will wire $467 within 24 hours of receipt. If payment is received in one lump sum of $3,909, the Group will wire $2,800 within 24 hours of receipt. The Group received a total of $3,909 from RDU in March 2024. The Group will be entitled to keep the remaining $1,109 received from RDU after payment is made to Nations Bus. The Group has repaid $2,800 to Nations Bus in April and May 2024, including $900 accrued interests.

Financing with Wisdom

The Group entered into a short-term loan agreement with total principal amount of $961 on December 11, 2023 with Wisdom Financial holdings Company Ltd (“Wisdom”). The short-term loan was used to pay deposit to purchase Proterra assets (see Note 4). The principal amount of the loan was fully paid off on January 8, 2024 by cash. Total interest expense of the loan was $279, in which $9 was paid off in January 2024 by cash, and $270 was settled by issuance of 180,202 shares of common stock of the Company in January 2024.