The Business - CLBS03 (Details)	12 Months Ended
	Dec. 31, 2015 patient cohort
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Interim efficacy analysis, percentage threshold	50.00%
Interim efficacy analysis, follow-up milestone period	6 years
The Sanford Project: T-Rex Study [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Number of cohorts (cohort) | cohort	2
Number of patients, cohort one (patient)	18
Number of patients, cohort two (patient)	93