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Inventory	3 Months Ended
Inventory	Mar. 31, 2017
Inventory Disclosure [Abstract]
Inventory	Inventory We had an inventory balance of $250 thousand as of March 31, 2017 and December 31, 2016, which was equal to the estimated salvage value of raw materials for our Pet Health Monitoring segment. We did not record a charge for excess or obsolete inventory in the three months ended March 31, 2017 or 2016.