Subsequent Events	12 Months Ended
Dec. 31, 2011
Subsequent Events [Abstract]
Subsequent Events	Note 12—Subsequent Events On February 15, 2012, our senior management, as authorized by our Board of Directors, decided to divest our RedBlack Communications business. As a result of management’s ongoing review of our business portfolio, management had determined that RedBlack offers limited opportunities to achieve the operating margin thresholds of our new business model and decided to refocus our operations on profitable growth opportunities presented in the other product lines that comprise our business segments, Battery & Energy Products and Communication Systems. Since 2008, our RedBlack Communications business has incurred significant operating losses. We are seeking to sell our RedBlack business as a going concern and will be engaging appropriate professionals to assist in that effort. We anticipate that the actions taken to divest the RedBlack Communications business will result in the elimination of approximately 30 jobs and the transfer of the RedBlack facility located in Hollywood, Maryland in connection the divestiture. We cannot predict at this time when the closing of any divestiture transaction will occur. Commencing with the first quarter of 2012 and concluding with the ultimate closing of the transaction, the results of RedBlack operations and related divestiture costs will be reported as a discontinued operation. We cannot at this time determine an estimate or a range of estimates of the extent of the restructuring charges we will incur in connection with the RedBlack divestiture.

Subsequent Events

12 Months Ended

Dec. 31, 2011

Note 12—Subsequent Events

On February 15, 2012, our senior management, as authorized by our Board of Directors, decided to divest our RedBlack Communications business. As a result of management’s ongoing review of our business portfolio, management had determined that RedBlack offers limited opportunities to achieve the operating margin thresholds of our new business model and decided to refocus our operations on profitable growth opportunities presented in the other product lines that comprise our business segments, Battery & Energy Products and Communication Systems. Since 2008, our RedBlack Communications business has incurred significant operating losses. We are seeking to sell our RedBlack business as a going concern and will be engaging appropriate professionals to assist in that effort. We anticipate that the actions taken to divest the RedBlack Communications business will result in the elimination of approximately 30 jobs and the transfer of the RedBlack facility located in Hollywood, Maryland in connection the divestiture. We cannot predict at this time when the closing of any divestiture transaction will occur. Commencing with the first quarter of 2012 and concluding with the ultimate closing of the transaction, the results of RedBlack operations and related divestiture costs will be reported as a discontinued operation.

We cannot at this time determine an estimate or a range of estimates of the extent of the restructuring charges we will incur in connection with the RedBlack divestiture.