Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Warrants (Detail)

v3.19.1
Stockholders' Equity - Warrants (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Stock Shares 490,000 1,128,750
Aevitas [Member]    
Stock Shares   1,000,000
Risk free rate   1.92%
Expected volatility   79.80%
Discount for Lack of Marketability   42.60%
Exercise price   $ 0.020
Fair Value   $ 20,000
Caelum [Member]    
Stock Shares   1,000,000
Risk free rate   1.93%
Expected volatility   70.00%
Discount for Lack of Marketability   49.50%
Exercise price   $ 0.028
Fair Value   $ 28,000
Cyprium [Member]    
Stock Shares   1,000,000
Risk free rate   1.92%
Expected volatility   84.30%
Discount for Lack of Marketability   44.20%
Exercise price   $ 0.004
Fair Value   $ 4,000
Acquisition Corp. III [Member]    
Stock Shares   1,000,000
Risk free rate   1.92%
Expected volatility   83.90%
Discount for Lack of Marketability   44.00%
Exercise price   $ 0.007
Fair Value   $ 7,000
Acquisition Corp. IV [Member]    
Stock Shares   1,000,000
Risk free rate   1.92%
Expected volatility   83.90%
Discount for Lack of Marketability   44.00%
Exercise price   $ 0.007
Fair Value   $ 7,000
Tamid [Member]    
Stock Shares   1,000,000
Risk free rate   1.92%
Expected volatility   83.90%
Discount for Lack of Marketability   44.00%
Exercise price   $ 0.007
Fair Value   $ 7,000
Acquisition Corp. VI [Member]    
Stock Shares   1,000,000
Risk free rate   1.92%
Expected volatility   83.90%
Discount for Lack of Marketability   44.00%
Exercise price   $ 0.007
Fair Value   $ 7,000
Acquisition Corp. VII [Member]    
Stock Shares   1,000,000
Risk free rate   1.92%
Expected volatility   83.90%
Discount for Lack of Marketability   44.00%
Exercise price   $ 0.007
Fair Value   $ 7,000
Acquisition Corp. VIII [Member]    
Stock Shares   1,000,000
Risk free rate   1.92%
Expected volatility   83.90%
Discount for Lack of Marketability   44.00%
Exercise price   $ 0.007
Fair Value   $ 7,000