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Inventories (Tables)
6 Months Ended
Jun. 30, 2012
Inventories [Abstract]  
Schedule of Inventory, Current [Table Text Block]
(Dollars in thousands)
 
June 30, 2012
  
December 31, 2011
 
Fiber and Data
 $1,302  $950 
Equipment
 $2,073  $6,631 
Telecom
 $1,685  $1,716