CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS EQUITY (DEFICIT) (Parenthetical)	12 Months Ended
Dec. 31, 2013 shares
Statement Of Stockholders Equity [Abstract]
Issuance of Common stock for cash	7,952

Stock issued during period shares issuance of common stock for cash.

No definition available.

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Namespace Prefix:	frpt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration