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Deferred Gross Profit (Tables)
 3 Months Ended
Mar. 31, 2014
Deferred Gross Profit [Abstract]  
Deferred Gross Profit [Table Text Block]
Deferred gross profit consists of the following (in thousands):
 
March 31,
2014
 
December 31,
2013
Sales of medication and supply dispensing systems and packaging equipment, delivered and invoiced but not yet installed
$
36,151

 
$
29,040

Cost of revenues, excluding installation costs
(11,045
)
 
(9,083
)
Deferred gross profit
$
25,106

 
$
19,957