Organization and Limited Liability Company Matters	12 Months Ended
Dec. 31, 2023
Organization and Limited Liability Company Matters [Abstract]
Organization and Limited Liability Company Matters	1. Organization and Limited Liability Company matters: ATEL 15, LLC (the “Company” or the “Fund”) was formed under the laws of the state of California on March 4, 2011 for the purpose of raising capital and originating equipment financing transactions and acquiring equipment to engage in equipment leasing and sales activities. The Managing Member of the Company is ATEL Managing Member, LLC (the “Managing Member” or “Manager”), a Nevada limited liability company. The Managing Member is controlled by ATEL Financial Services (“AFS”), a wholly-owned subsidiary of ATEL Capital Group. The Fund may continue until terminated as provided in the ATEL 15, LLC Amended and Restated Limited Liability Company Operating Agreement dated October 28, 2011 (the ”Operating Agreement”). Contributions in the amount of $500 were received as of May 3, 2011, which represented the initial member’s capital investment. As a limited liability company, the liability of any individual member for the obligations of the Fund is limited to the extent of capital contributions to the Fund by the individual member. The Company conducted a public offering of 15,000,000 Limited Liability Company Units (“Units”), at a price of $10 per Unit. As of December 21, 2011, subscriptions for the minimum number of Units (120,000, representing $1.2 million), excluding subscriptions from Pennsylvania investors, had been received and the Fund requested subscription proceeds to be released from escrow. On that date, the Company commenced initial operations and continued in its development stage activities until transitioning to an operating enterprise during the first quarter of 2012. Pennsylvania subscriptions are subject to a separate escrow and are released to the Fund only when aggregate subscriptions for all investors equal to at least $7.5 million. Total contributions to the Fund exceeded $7.5 million on April 14, 2012, at which time a request was processed to release the Pennsylvania escrowed amounts. The offering was terminated on October 28, 2013. As of December 31, 2023, cumulative gross contributions, less rescissions and repurchases (net of distributions paid and allocated syndication costs, as applicable), totaling $65.9 million (inclusive of the $500 initial Member’s capital investment) have been received. As of the same date, 6,529,607 Units were issued and outstanding. The Company’s principal objectives are to invest in a diversified portfolio of investments that will (i) preserve, protect and return the Company’s invested capital; (ii) generate regular cash distributions to unitholders, with any balance remaining after required minimum distributions to be used to purchase additional investments during the Reinvestment Period (ending six calendar years after the completion of the Company’s public offering of Units) and (iii) provide additional cash distributions following the Reinvestment Period and until all investment portfolio assets has been sold or otherwise disposed. The Company is governed by the ATEL 15, LLC amended and restated Limited Liability Company Operating Agreement dated October 28, 2011 (the “Operating Agreement”). On January 1, 2020, the Company commenced liquidation phase activities pursuant to the guidelines of the Operating Agreement. Pursuant to the terms of the Operating Agreement, the Managing Member and/or its affiliates receives compensation for services rendered and reimbursements for costs incurred on behalf of the Company (See Note 6). The Company is required to maintain reasonable cash reserves for working capital, the repurchase of Units and contingencies. The repurchase of Units is solely at the discretion of the Managing Member.

Organization and Limited Liability Company Matters

12 Months Ended

Dec. 31, 2023

Organization and Limited Liability Company Matters [Abstract]

Organization and Limited Liability Company Matters

1. Organization and Limited Liability Company matters:

ATEL 15, LLC (the “Company” or the “Fund”) was formed under the laws of the state of California on March 4, 2011 for the purpose of raising capital and originating equipment financing transactions and acquiring equipment to engage in equipment leasing and sales activities. The Managing Member of the Company is ATEL Managing Member, LLC (the “Managing Member” or “Manager”), a Nevada limited liability company. The Managing Member is controlled by ATEL Financial Services (“AFS”), a wholly-owned subsidiary of ATEL Capital Group. The Fund may continue until terminated as provided in the ATEL 15, LLC Amended and Restated Limited Liability Company Operating Agreement dated October 28, 2011 (the ”Operating Agreement”). Contributions in the amount of $500 were received as of May 3, 2011, which represented the initial member’s capital investment. As a limited liability company, the liability of any individual member for the obligations of the Fund is limited to the extent of capital contributions to the Fund by the individual member.

The Company conducted a public offering of 15,000,000 Limited Liability Company Units (“Units”), at a price of $10 per Unit. As of December 21, 2011, subscriptions for the minimum number of Units (120,000, representing $1.2 million), excluding subscriptions from Pennsylvania investors, had been received and the Fund requested subscription proceeds to be released from escrow. On that date, the Company commenced initial operations and continued in its development stage activities until transitioning to an operating enterprise during the first quarter of 2012. Pennsylvania subscriptions are subject to a separate escrow and are released to the Fund only when aggregate subscriptions for all investors equal to at least $7.5 million. Total contributions to the Fund exceeded $7.5 million on April 14, 2012, at which time a request was processed to release the Pennsylvania escrowed amounts. The offering was terminated on October 28, 2013.

As of December 31, 2023, cumulative gross contributions, less rescissions and repurchases (net of distributions paid and allocated syndication costs, as applicable), totaling $65.9 million (inclusive of the $500 initial Member’s capital investment) have been received. As of the same date, 6,529,607 Units were issued and outstanding.

The Company’s principal objectives are to invest in a diversified portfolio of investments that will (i) preserve, protect and return the Company’s invested capital; (ii) generate regular cash distributions to unitholders, with any balance remaining after required minimum distributions to be used to purchase additional investments during the Reinvestment Period (ending six calendar years after the completion of the Company’s public offering of Units) and (iii) provide additional cash distributions following the Reinvestment Period and until all investment portfolio assets has been sold or otherwise disposed. The Company is governed by the ATEL 15, LLC amended and restated Limited Liability Company Operating Agreement dated October 28, 2011 (the “Operating Agreement”). On January 1, 2020, the Company commenced liquidation phase activities pursuant to the guidelines of the Operating Agreement.

Pursuant to the terms of the Operating Agreement, the Managing Member and/or its affiliates receives compensation for services rendered and reimbursements for costs incurred on behalf of the Company (See Note 6). The Company is required to maintain reasonable cash reserves for working capital, the repurchase of Units and contingencies. The repurchase of Units is solely at the discretion of the Managing Member.

ATEL 15, LLC 10-K