Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

				Fair Value Measurements at Reporting Date Using
		Amount		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
As of March 31, 2018	Warrant derivative liabilities	$	2,438	$	-	$	-	$	2,438
As of December 31, 2017	Warrant derivative liabilities	$	24,233	$	-	$	-	$	24,233