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Summary of Significant Accounting Policies (Details 1)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Patterson Companies, Inc. [Member]        
Revenue, Major Customer [Line Items]        
Concentration risk percentage 42.00% 42.00% 41.00% 39.00%
AmerisourceBergen Corporation [Member]        
Revenue, Major Customer [Line Items]        
Concentration risk percentage 19.00% 20.00% 24.00% 20.00%