Organization, Consolidation and Presentation of Financial Statements	12 Months Ended
Dec. 31, 2011
Organization, Consolidation and Presentation of Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]	Note 1 — Organization Hartman Short Term Income Properties XX, Inc. (the “Company”), is a Maryland corporation formed on February 5, 2009. The Company elected to be treated as a real estate investment trust (“REIT”) beginning with the taxable year ending December 31, 2011. The Company is offering shares to the public in its primary offering (exclusive of 2,500,000 shares available pursuant to the Company’s dividend reinvestment plan) at a price of $10.00 per share. The Company was originally a majority owned subsidiary of Hartman XX Holdings, Inc. Hartman XX Holdings, Inc. is a Texas corporation wholly owned by Allen R. Hartman. The Company sold 19,000 shares to Hartman XX Holdings, Inc. at a price of $10.00 per share. The Company has also issued 1,000 shares of convertible preferred shares to its advisor, Hartman Advisors LLC at a price of $10.00 per share. Hartman Advisors LLC (the “Advisor”) is the Company’s advisor. The Advisor is owned 70% by Allen R. Hartman and 30% by Hartman Income REIT Management, Inc. As of December 31, 2011, the Company had accepted investor’s subscriptions for, and issued, 1,756,927 shares of the Company’s common stock in its public offering, resulting in gross proceeds to the Company of $17,441,203. The management of the Company is through the Advisor. Management of the Company’s properties is through Hartman Income REIT Management, Inc. (“HIR Management” or the “Property Manager”). Allied Beacon Partners, Inc. (formerly American Beacon Partners, Inc., the “Dealer Manager”) served as the dealer manager of the Company’s public offering from February 5, 2009 to February 1, 2012. Effective February 1, 2012, D.H. Hill Securities, LLLP succeeded Allied Beacon Partners, Inc. as the dealer manager for the offering. These parties receive compensation and fees for services related to the offering and for the investment and management of the Company’s assets. These entities will receive fees during the offering, acquisition, operational and liquidation stages. As of December 31, 2011 we owned 1 commercial property located in Richardson, Texas comprising approximately 201,000 square feet.

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The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

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