Annual report pursuant to Section 13 and 15(d)

Product Warranties (Details Textual)

v2.4.0.6
Product Warranties (Details Textual) (USD $)
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Product Warranties (Textual) [Abstract]    
Current portions of warranty reserve $ 94,000 $ 110,000
Long-term portions of the warranty reserve 58,000 133,000
Specific pre-acquisition ANTONE product warranty in excess of acquired limit 303,000  
ANTONEStandardProductWarrantyAccrual 2,000  
Indemnification receivable from sellers of ANTONE 0  
Maximum [Member]
   
Product Warranties (Textual) [Abstract]    
Basic limited warranty maximum range 7 years  
Antone Wireless Corporation [Member]
   
Product Warranties (Textual) [Abstract]    
Specific pre-acquisition ANTONE product warranty in excess of acquired limit $ 303,000