Accounting Policies, by Policy (Policies)	3 Months Ended
Dec. 31, 2013
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial statements and do not include all the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. However, the information furnished reflects all adjustments, consisting only of normal recurring items which are, in the opinion of management, necessary in order to make the consolidated financial statements not misleading. The consolidated financial statements as of September 30, 2013 have been audited by an independent registered public accounting firm. It is suggested that these consolidated financial statements be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K/A for the fiscal year ended September 30, 2013. ADDvantage Technologies Group, Inc., through its subsidiaries Tulsat Corporation, Tulsat-Atlanta LLC, ADDvantage Technologies Group of Nebraska (dba Tulsat-Nebraska), ADDvantage Technologies Group of Texas, Inc. (dba Tulsat-Texas), NCS Industries, Inc., ADDvantage Technologies Group of Missouri, Inc. (dba ComTech Services) and Adams Global Communications, LLC (collectively, the “Company”), sells new, surplus and re-furbished cable television equipment throughout North America, Central America, South America and, to a substantially lesser extent, other international regions that utilize the same technology. In addition, the Company also repairs cable television equipment for various cable companies. The Company operates in one business segment and product sales consist of different types of equipment used in the cable television equipment industry.
Fair Value of Financial Instruments, Policy [Policy Text Block]	Fair value of financial instruments The carrying amounts of accounts receivable and accounts payable approximate fair value due to their short maturities. The carrying value of the term debt approximates fair value since the interest rate fluctuates periodically based on a floating interest rate.

Accounting Policies, by Policy (Policies)

3 Months Ended

Dec. 31, 2013

Basis of Accounting, Policy [Policy Text Block]

Basis of presentation

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial statements and do not include all the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. However, the information furnished reflects all adjustments, consisting only of normal recurring items which are, in the opinion of management, necessary in order to make the consolidated financial statements not misleading. The consolidated financial statements as of September 30, 2013 have been audited by an independent registered public accounting firm. It is suggested that these consolidated financial statements be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K/A for the fiscal year ended September 30, 2013.

ADDvantage Technologies Group, Inc., through its subsidiaries Tulsat Corporation, Tulsat-Atlanta LLC, ADDvantage Technologies Group of Nebraska (dba Tulsat-Nebraska), ADDvantage Technologies Group of Texas, Inc. (dba Tulsat-Texas), NCS Industries, Inc., ADDvantage Technologies Group of Missouri, Inc. (dba ComTech Services) and Adams Global Communications, LLC (collectively, the “Company”), sells new, surplus and re-furbished cable television equipment throughout North America, Central America, South America and, to a substantially lesser extent, other international regions that utilize the same technology. In addition, the Company also repairs cable television equipment for various cable companies. The Company operates in one business segment and product sales consist of different types of equipment used in the cable television equipment industry.

Fair Value of Financial Instruments, Policy [Policy Text Block]

Fair value of financial instruments

The carrying amounts of accounts receivable and accounts payable approximate fair value due to their short maturities. The carrying value of the term debt approximates fair value since the interest rate fluctuates periodically based on a floating interest rate.