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Income Taxes (Details) (USD $)
In Millions, except Share data, unless otherwise specified
0 Months Ended
Dec. 31, 2012
Synergy-DE
Jul. 14, 2008
Pawfect
Income Taxes    
Net operating loss carryforwards $ 94  
Income tax additional disclosure    
Percentage of common stock acquired in Synergy-DE   100.00%
Exchange of unregistered common stock (in shares)   22,732,380
Percentage of Pawfect's outstanding common stock issued in exchange transaction (as a percent)   70.00%