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Deferred Gross Profit
 3 Months Ended
Mar. 31, 2013
Deferred Gross Profit [Abstract]  
Deferred Gross Profit [Text Block]
Deferred Gross Profit
 
Deferred gross profit consists of the following (in thousands):

March 31,
2013
 
December 31,
2012
Sales of medication and supply dispensing systems and packaging equipment, which have been delivered and invoiced but not yet installed
$
39,937

 
$
30,138

Cost of revenues, excluding installation costs
(12,999
)
 
(9,366
)
Deferred gross profit
$
26,938

 
$
20,772