Subsequent Events	12 Months Ended
Jun. 30, 2012
Subsequent Events	T. Subsequent Events On June 8, 2012, the Company and Wildcat Merger Sub Inc., a newly formed, wholly-owned subsidiary of the Company (the “Merger Sub”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Micronetics, Inc. (“Micronetics”). On August 8, 2012, the transaction closed with the Merger Sub merging with and into Micronetics with Micronetics continuing as the surviving company and wholly-owned subsidiary of the Company. Headquartered in Hudson, NH, Micronetics is a leading designer and manufacturer of microwave and radio frequency (RF) subsystems and components for defense and commercial customers. Pursuant to the terms of the Merger Agreement, at the closing of the merger on August 8, 2012, each share of common stock of Micronetics issued and outstanding immediately prior to the closing was converted into the right to receive $14.80 in cash, without interest (the “Merger Consideration”). All outstanding options to acquire shares of Micronetics common stock that were vested as of the closing were cancelled and the holders of such options are entitled to receive an amount of cash equal to the product of the total number of shares previously subject to such vested options and the excess of the Merger Consideration over the exercise price per share. All outstanding Micronetics stock options that were unvested at the closing were assumed by Mercury. Mercury funded the acquisition with cash on hand. The transaction will be accounted for using the acquisition method of accounting which requires, among other things, that the assets acquired and liabilities assumed be recognized at their fair values as of the acquisition date. The acquisition related disclosures required by FASB ASC 805 cannot be made as the initial accounting for the business transaction is incomplete. Key financial data such as the determination of the fair value of the assets acquired and liabilities assumed is not yet available.

T. Subsequent Events

On June 8, 2012, the Company and Wildcat Merger Sub Inc., a newly formed, wholly-owned subsidiary of the Company (the “Merger Sub”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Micronetics, Inc. (“Micronetics”). On August 8, 2012, the transaction closed with the Merger Sub merging with and into Micronetics with Micronetics continuing as the surviving company and wholly-owned subsidiary of the Company.

Headquartered in Hudson, NH, Micronetics is a leading designer and manufacturer of microwave and radio frequency (RF) subsystems and components for defense and commercial customers.

Pursuant to the terms of the Merger Agreement, at the closing of the merger on August 8, 2012, each share of common stock of Micronetics issued and outstanding immediately prior to the closing was converted into the right to receive $14.80 in cash, without interest (the “Merger Consideration”). All outstanding options to acquire shares of Micronetics common stock that were vested as of the closing were cancelled and the holders of such options are entitled to receive an amount of cash equal to the product of the total number of shares previously subject to such vested options and the excess of the Merger Consideration over the exercise price per share. All outstanding Micronetics stock options that were unvested at the closing were assumed by Mercury. Mercury funded the acquisition with cash on hand.

The transaction will be accounted for using the acquisition method of accounting which requires, among other things, that the assets acquired and liabilities assumed be recognized at their fair values as of the acquisition date. The acquisition related disclosures required by FASB ASC 805 cannot be made as the initial accounting for the business transaction is incomplete. Key financial data such as the determination of the fair value of the assets acquired and liabilities assumed is not yet available.