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Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Component of inventory use in hospitality product [Abstract]    
Finished goods $ 10,642 $ 8,914
Work in process 411 263
Component parts 7,901 5,068
Service parts 6,438 7,254
Inventory net 25,392 21,499
Inventory reserves $ 8,600 $ 8,800