Transactions with Related Party (Details) (USD $)	3 Months Ended			12 Months Ended	3 Months Ended	0 Months Ended		3 Months Ended
	Mar. 31, 2012	Mar. 31, 2013 Higi [Member]	Mar. 31, 2012 Higi [Member]	Dec. 31, 2011 Higi [Member] Master Services Agreement [Member]	Mar. 31, 2013 Higi [Member] Sell Health Stations and Related Equipment Agreement [Member]	Feb. 24, 2012 Merrick [Member] sqft	Mar. 31, 2013 Merrick [Member]	Mar. 31, 2013 Merrick [Member] Consulting Agreement [Member]	Mar. 31, 2012 Merrick [Member] Consulting Agreement [Member]	Mar. 31, 2013 Merrick [Member] Consulting Agreement [Member] Minimum [Member]	Mar. 31, 2013 Merrick [Member] Consulting Agreement [Member] Maximum [Member]	Mar. 31, 2013 Merrick [Member] Higi [Member]
Related Party Transaction [Line Items]
Ownership percentage of common stock (in hundredths)							29.00%					70.00%
Quarterly retainer amount								$ 150,000
Percentage of success fees (in hundredths)										1.00%	2.00%
Amount specified as base of success										1,000,000,000
Payment made to related parties for services								150,000	282,000
Expenses from transactions with related party recognized								177,000	427,000
Accounts payable to related parties								27,000	277,000
Revenue recognized from related parties	358,000	0	155,000
Agreement to sell health stations and related equipment					2,750,000
Annual branding fee for each health station				100
Initial term of agreement				1 year
Minimum notice period for termination of agreement				120 days
Area taken under sublease from related party (in square feet)						4,700
Annual rent expense						78,000
Acquired fixtures, leasehold improvements, and furniture						$ 70,000