There is no bail when you get jailed for contempt of court. The judge can keep you there as long as he likes, or until you comply with the order.
Reporters jailed for refusing to testify
The following information is taken from Reporters Committee for Freedom of the Press’ Paying the Price: A recent census of reporters jailed or fined for refusing to testify and from the First Amendment Center’s Jailed & subpoenaed journalists a historical timeline.
http://www.foxnews.com/us/2013/04/05/reporters-jailed-for-refusing-to-testify/