Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Warrants (Detail)

v3.8.0.1
Stockholders' Equity - Warrants (Detail) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Volatilty 70.00%    
Exercise price $ 1.01    
Mustang [Member]      
Warrant Shares   1,000,000
Risk Free Rate     2.36%
Volatilty     106.11%
Life     10 years
Exercise price     $ 0.147
Fair Value     $ 135,000
Checkpoint [Member]      
Warrant Shares   1,000,000
Risk Free Rate     2.36%
Volatilty     106.11%
Life     10 years
Exercise price     $ 0.129
Fair Value     $ 118,000
Avenue [Member]      
Warrant Shares   1,000,000
Risk Free Rate     2.36%
Volatilty     106.11%
Life     10 years
Exercise price     $ 0.146
Fair Value     $ 134,000
CNDO SO [Member]      
Warrant Shares     1,000,000
Risk Free Rate     2.36%
Volatilty     106.11%
Life     10 years
Exercise price     $ 1.19
Fair Value     $ 1,091,000
Helocyte [Member]      
Warrant Shares     1,000,000
Risk Free Rate     2.36%
Volatilty     106.11%
Life     10 years
Exercise price     $ 0.097
Fair Value     $ 89,000
JMC [Member]      
Warrant Shares     1,000,000
Risk Free Rate     2.36%
Volatilty     106.11%
Life     10 years
Exercise price     $ 0.65
Fair Value     $ 596,000
Escala [Member]      
Warrant Shares     1,000,000
Risk Free Rate     2.36%
Volatilty     106.11%
Life     10 years
Exercise price     $ 0.071
Fair Value     $ 65,000
Cellvation [Member]      
Warrant Shares   1,000,000  
Risk Free Rate   2.86%  
Volatilty   70.00%  
Life   9 years  
Exercise price   $ 0.024  
Fair Value   $ 18,000  
Aevitas [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,000,000    
Risk Free Rate 1.92%    
Discount for Lack of Marketability 42.60%    
Volatilty 79.80%    
Exercise price $ 0.020    
Fair Value $ 20,000    
Caelum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,000,000    
Risk Free Rate 1.93%    
Discount for Lack of Marketability 49.50%    
Volatilty 70.00%    
Exercise price $ 0.028    
Fair Value $ 28,000    
Cyprium [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,000,000    
Risk Free Rate 1.92%    
Discount for Lack of Marketability 44.20%    
Volatilty 84.30%    
Exercise price $ 0.004    
Fair Value $ 4,000    
Acquisition Corp. III [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,000,000    
Risk Free Rate 1.92%    
Discount for Lack of Marketability 44.00%    
Volatilty 83.90%    
Exercise price $ 0.007    
Fair Value $ 7,000    
Acquisition Corp. IV [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,000,000    
Risk Free Rate 1.92%    
Discount for Lack of Marketability 44.00%    
Volatilty 83.90%    
Exercise price $ 0.007    
Fair Value $ 7,000    
Tamid [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,000,000    
Risk Free Rate 1.92%    
Discount for Lack of Marketability 44.00%    
Volatilty 83.90%    
Exercise price $ 0.007    
Fair Value $ 7,000    
Acquisition Corp. VI [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,000,000    
Risk Free Rate 1.92%    
Discount for Lack of Marketability 44.00%    
Volatilty 83.90%    
Exercise price $ 0.007    
Fair Value $ 7,000    
Acquisition Corp. VII [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,000,000    
Risk Free Rate 1.92%    
Discount for Lack of Marketability 44.00%    
Volatilty 83.90%    
Exercise price $ 0.007    
Fair Value $ 7,000    
Acquisition Corp. VIII [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,000,000    
Risk Free Rate 1.92%    
Discount for Lack of Marketability 44.00%    
Volatilty 83.90%    
Exercise price $ 0.007    
Fair Value $ 7,000