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Debt (Details) - USD ($)
1 Months Ended 3 Months Ended
Mar. 11, 2016
Sep. 30, 2016
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Dec. 31, 2015
Sep. 26, 2014
Debt Instrument [Line Items]              
Notes Payable     $ 1,200,000     $ 1,100,000  
Equity Method Investment, Ownership Percentage 19.90%            
Debt Issuance Cost     (100,000)        
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Four     2,369,500        
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Five     2,524,900        
Long-term Debt     4,894,400        
Interest expense     $ 100,000 $ 300,000      
Impaired Long-Lived Assets Held and Used, Asset Name [Domain]              
Debt Instrument [Line Items]              
Debt Instrument, Periodic Payment, Interest     8.00%        
Long-term Debt [Member]              
Debt Instrument [Line Items]              
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum     8.50%        
Aspire Capital Purchase Agreement [Member]              
Debt Instrument [Line Items]              
Long-term Debt, Gross             $ 15,000,000
NeoStem, Inc. [Member] | Long-term Debt [Member]              
Debt Instrument [Line Items]              
Debt Instrument, Payment Terms     21 months        
Oxford Finance LLC [Member]              
Debt Instrument [Line Items]              
Repayments of Debt $ 7,000,000 $ 3,000,000          
Debt Instrument, Payment To Lender Based On Receipt Of Proceeds From Eligible Events, Percent 20.00%            
Long-term Debt     $ 4,900,000   $ 5,700,000    
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months     $ 3,200,000        
Minimum [Member] | Notes Payable, Other Payables [Member]              
Debt Instrument [Line Items]              
Debt Instrument, Payment Terms     1 year        
Maximum [Member] | Notes Payable, Other Payables [Member]              
Debt Instrument [Line Items]              
Debt Instrument, Payment Terms     3 years