Stockholder's Equity (Details) shares in Thousands	6 Months Ended
Jun. 30, 2020 shares
Stockholder's Equity
Exchange of common shares	982

Number of shares exchanged by corresponding LLC Interests.

No definition available.

Name:	petq_ExchangeOfCommonStock
Namespace Prefix:	petq_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration