Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Additional Information (Details)

v3.4.0.3
Fair Value Measurements - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Gain due to change in value of note payable $ (34) $ 90
Gain due to expiration of warrant liability 17 (15)
BioServe    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Gain due to change in value of note payable $ (34) $ 90
VenturEast [Member] | BioServe    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Number of shares associated with notes payable 84,278  
Gain due to change in value of note payable $ 34