Organization and Limited Liability Company Matters	12 Months Ended
Dec. 31, 2019
Organization and Limited Liability Company Matters [Abstract]
Organization and Limited Liability Company Matters	1. Organization and Limited Liability Company matters: ATEL Capital Equipment Fund X, LLC (the “Company” or the “Fund”) was formed under the laws of the State of California on August 12, 2002 for the purpose of engaging in the sale of limited liability company investment units and acquiring equipment to engage in equipment leasing, lending and sales activities, primarily in the United States. The Managing Member of the Company is ATEL Financial Services, LLC (“AFS”), a California limited liability company. The Company may continue until December 31, 2022. The Company conducted a public offering of 15,000,000 Limited Liability Company Units (“Units”), at a price of $10 per Unit. On April 9, 2003, subscriptions for the minimum number of Units (120,000, representing $1.2 million) had been received (excluding subscriptions from Pennsylvania investors) and AFS requested that the subscriptions be released to the Company. On that date, the Company commenced operations in its primary business. As of March 11, 2005, the offering was terminated. As of that date, subscriptions for 14,059,136 Units ($140.6 million) had been received, of which 87,650 Units ($720 thousand) were subsequently rescinded or repurchased (net of distributions paid and allocated syndication costs, as applicable) by the Company through December 31, 2019. As of December 31, 2019, 13,971,486 Units remain issued and outstanding. The Company’s principal objectives have been to invest in a diversified portfolio of equipment that (i) preserves, protects and returns the Company’s invested capital; (ii) generates regular distributions to the members of cash from operations and cash from sales or refinancing, with any balance remaining after certain minimum distributions to be used to purchase additional equipment during the reinvestment period (“Reinvestment Period”) (defined as six full years following the year the offering was terminated) which ended on December 31, 2011 and (iii) provides additional distributions following the Reinvestment Period and until all equipment has been sold. The Company is governed by the Limited Liability Company Operating Agreement (“Operating Agreement”), as amended. On January 1, 2012, the Company commenced liquidation phase activities pursuant to the guidelines of the Operating Agreement. Pursuant to the terms of the Operating Agreement, AFS receives compensation and reimbursements for services rendered 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 AFS. The Company will pay AFS and affiliates of AFS substantial fees which may result in a conflict of interest. The Company will pay substantial fees to AFS and its affiliates before distributions are paid to investors even if the Company does not produce profits. Therefore, the financial position of the Company could change significantly.

1. Organization and Limited Liability Company matters:

ATEL Capital Equipment Fund X, LLC (the “Company” or the “Fund”) was formed under the laws of the State of California on August 12, 2002 for the purpose of engaging in the sale of limited liability company investment units and acquiring equipment to engage in equipment leasing, lending and sales activities, primarily in the United States. The Managing Member of the Company is ATEL Financial Services, LLC (“AFS”), a California limited liability company. The Company may continue until December 31, 2022.

The Company conducted a public offering of 15,000,000 Limited Liability Company Units (“Units”), at a price of $10 per Unit. On April 9, 2003, subscriptions for the minimum number of Units (120,000, representing $1.2 million) had been received (excluding subscriptions from Pennsylvania investors) and AFS requested that the subscriptions be released to the Company. On that date, the Company commenced operations in its primary business. As of March 11, 2005, the offering was terminated. As of that date, subscriptions for 14,059,136 Units ($140.6 million) had been received, of which 87,650 Units ($720 thousand) were subsequently rescinded or repurchased (net of distributions paid and allocated syndication costs, as applicable) by the Company through December 31, 2019. As of December 31, 2019, 13,971,486 Units remain issued and outstanding.

The Company’s principal objectives have been to invest in a diversified portfolio of equipment that (i) preserves, protects and returns the Company’s invested capital; (ii) generates regular distributions to the members of cash from operations and cash from sales or refinancing, with any balance remaining after certain minimum distributions to be used to purchase additional equipment during the reinvestment period (“Reinvestment Period”) (defined as six full years following the year the offering was terminated) which ended on December 31, 2011 and (iii) provides additional distributions following the Reinvestment Period and until all equipment has been sold. The Company is governed by the Limited Liability Company Operating Agreement (“Operating Agreement”), as amended. On January 1, 2012, the Company commenced liquidation phase activities pursuant to the guidelines of the Operating Agreement.

Pursuant to the terms of the Operating Agreement, AFS receives compensation and reimbursements for services rendered 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 AFS.

The Company will pay AFS and affiliates of AFS substantial fees which may result in a conflict of interest. The Company will pay substantial fees to AFS and its affiliates before distributions are paid to investors even if the Company does not produce profits. Therefore, the financial position of the Company could change significantly.