Nature of Operations	12 Months Ended
Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	Zoom Telephonics, Inc. (the "Company") designs, produces, and markets broadband and dial-up modems and other communication-related products. On January 28, 2009, Zoom Technologies, Inc. (“Zoom Technologies”) entered into a Share Exchange Agreement (the “Agreement”) with Tianjin Tong Guang Group Digital Communication Co., Ltd (“TCB Digital”), TCB Digital’s majority shareholder, Gold Lion Holding Limited (“Gold Lion”) and Lei Gu (“Gu”), a shareholder of Gold Lion. On May 12, 2009, the parties amended the Agreement to, among other actions, add Songtao Du (“Du”), a shareholder of Gold Lion, as a party to the Agreement. On September 22, 2009, pursuant to the Agreement, Zoom Technologies acquired all the outstanding shares of Gold Lion. In addition, as part of the transaction, Zoom Technologies spun off its then-current business, which consisted of its ownership of Zoom Telephonics, Inc. (“Zoom Telephonics”) to its stockholders, by distributing and transferring its assets and liabilities to Zoom Telephonics and issuing a dividend of the Zoom Telephonics’ shares to its stockholders. Upon the completion of the spin-off, Zoom Telephonics became a separate publicly traded company. The Company has had recurring net losses and continues to experience negative cash flows from operations. As described further in Note 3, to conserve cash and manage liquidity, the Company has implemented cost cutting initiatives including the reduction of employee headcount and overhead costs; however, management does not believe the Company has sufficient resources to fund its normal operations over the next 12 months unless sales improve significantly or it raises capital. Additional financing may not be available on terms favorable to the Company, or at all. If these funds are not available, the Company may not be able to execute its business plan or take advantage of business opportunities. The ability of the Company to obtain such additional financing and to achieve its operating goals is uncertain. In the event that the Company does not obtain additional capital or is not able to increase cash flow through the increase of sales, there is substantial doubt as to its ability to continue as a going concern. The accompanying financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Nature of Operations

12 Months Ended

Dec. 31, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Zoom Telephonics, Inc. (the "Company") designs, produces, and markets broadband and dial-up modems and other communication-related products.

On January 28, 2009, Zoom Technologies, Inc. (“Zoom Technologies”) entered into a Share Exchange Agreement (the “Agreement”) with Tianjin Tong Guang Group Digital Communication Co., Ltd (“TCB Digital”), TCB Digital’s majority shareholder, Gold Lion Holding Limited (“Gold Lion”) and Lei Gu (“Gu”), a shareholder of Gold Lion. On May 12, 2009, the parties amended the Agreement to, among other actions, add Songtao Du (“Du”), a shareholder of Gold Lion, as a party to the Agreement. On September 22, 2009, pursuant to the Agreement, Zoom Technologies acquired all the outstanding shares of Gold Lion. In addition, as part of the transaction, Zoom Technologies spun off its then-current business, which consisted of its ownership of Zoom Telephonics, Inc. (“Zoom Telephonics”) to its stockholders, by distributing and transferring its assets and liabilities to Zoom Telephonics and issuing a dividend of the Zoom Telephonics’ shares to its stockholders. Upon the completion of the spin-off, Zoom Telephonics became a separate publicly traded company.

The Company has had recurring net losses and continues to experience negative cash flows from operations. As described further in Note 3, to conserve cash and manage liquidity, the Company has implemented cost cutting initiatives including the reduction of employee headcount and overhead costs; however, management does not believe the Company has sufficient resources to fund its normal operations over the next 12 months unless sales improve significantly or it raises capital. Additional financing may not be available on terms favorable to the Company, or at all. If these funds are not available, the Company may not be able to execute its business plan or take advantage of business opportunities. The ability of the Company to obtain such additional financing and to achieve its operating goals is uncertain. In the event that the Company does not obtain additional capital or is not able to increase cash flow through the increase of sales, there is substantial doubt as to its ability to continue as a going concern. The accompanying financial statements do not include any adjustments that might result from the outcome of this uncertainty.