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Summary of Significant Accounting Policies (Details 1) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Patterson Companies, Inc. [Member] |  |  |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |
Concentration risk percentage |  | 44.00% | 40.00% | 42.00% |  | 39.00% |
AmerisourceBergen Corporation [Member] |  |  |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |
Concentration risk percentage |  | 22.00% | 18.00% | 23.00% |  | 20.00% |
ANIMART LLC [Member] |  |  |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |
Concentration risk percentage | [1] | 10.00% | 11.00% |  | [2] |  | [2]
[1] | Assumes that the acquisition of Animal Medic by ANIMART LLC (which closed during the third quarter of 2016) had occurred as of the beginning of the periods being reported.
[2] | Amount is less than 10%.

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