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General (Narratives) (Details) (USD $)
 12 Months Ended 0 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Jan. 19, 2011
Nera Telecommunications Ltd. [Member]
Dec. 31, 2011
Nera Networks [Member]
Jan. 19, 2011
Nera Networks [Member]
Dec. 31, 2010
Nera Networks [Member]
Mar. 31, 2013
Credit Agreement [Member]
General [Line Items]              
Escrow deposit         $ 10,000,000    
Period of time that money is in escrow         18 months    
Consideration for all shares         57,175,000    
Long-term debt 26,768,000       35,000,000    
Non-compete agreement     3 years        
Trademark purchase agreement term     2 years        
Acquisitions costs       4,919,000   775,000  
Restructuring costs 4,608,000 7,834,000   7,834,000      
Restructuring reserve 3,712,000     1,330,000      
Maximum borrowing capacity under the credit agreement $ 40,000,000           $ 113,700,000