Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement - Summary of Assets and Liabilities Measured at Fair Value Recurring and Nonrecurring Basis (Details)

v3.19.1
Fair Value Measurement - Summary of Assets and Liabilities Measured at Fair Value Recurring and Nonrecurring Basis (Details) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Marketable securities $ 2,988,175 $ 2,878,664
Total assets 2,988,175 2,878,664
Warrants payable 10,889 5,965
Total liabilities 10,889 5,965
Level 1 [Member]    
Marketable securities 2,988,175 2,878,664
Total assets 2,988,175 2,878,664
Warrants payable
Total liabilities
Level 2 [Member]    
Marketable securities
Total assets
Warrants payable
Total liabilities
Level 3 [Member]    
Marketable securities
Total assets
Warrants payable 10,889 5,965
Total liabilities $ 10,889 $ 5,965