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Noncontrolling Interest (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Noncontrolling Interest
Balance at the beginning of the period	$ (99)	$ 11	$ 11
Net loss-noncontrolling interest	(36)	(30)	(110)
Balance at the end of the period	$ (135)		$ (99)
Rest Assured LLC
Noncontrolling Interest
Ownership interest (as a percent)	66.70%

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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- Definition

Amount of Net Income (Loss) attributable to noncontrolling interest.

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