Convertible Notes (Tables)

6 Months Ended

Jun. 30, 2020

Debt Disclosure [Abstract]

Convertible Debt

The following table summarizes how the issuance of the Convertible Notes is reflected in the Company's Consolidated Balance Sheets as of June 30, 2020 and December 31, 2019.

	Related Party			Others			Total
Balance as of June 30, 2020
Gross proceeds	$	10,000		$	97,000		$	107,000
Unamortized debt discounts and deferred financing offering costs	(871		)	(9,482		)	(10,353		)
Net carrying amount	$	9,129		$	87,518		$	96,647
Balance as of December 31, 2019
Gross proceeds	$	10,000		$	97,000		$	107,000
Unamortized debt discounts and deferred financing offering costs	(1,136		)	(12,352		)	(13,488		)
Net carrying amount	$	8,864		$	84,648		$	93,512

Schedule of Interest Expense

The following tables set forth the Company's interest expense recognized in the Company's Consolidated Statements of Operations:

	Three Months Ended June 30, 2020						Six Months Ended   June 30, 2020
	Related Party		Others		Total		Related Party		Others		Total
Accrued coupon interest expense	$	137	$	1,334	$	1,471	$	274	$	2,668	$	2,942
Amortization of debt discounts	131		1,278		1,409		258		2,516		2,774
Amortization of deferred financing offering costs	4		180		184		7		354		361
Total convertible notes interest expense	$	272	$	2,792	$	3,064	$	539	$	5,538	$	6,077

	Three Months Ended June 30, 2019						Six Months Ended   June 30, 2019
	Related Party		Others		Total		Related Party		Others		Total
Accrued coupon interest expense	$	137	$	1,334	$	1,471	$	275	$	2,668	$	2,943
Amortization of debt discounts	117		1,124		1,241		229		2,213		2,442
Amortization of deferred financing offering costs	3		159		162		6		312		318
Total convertible notes interest expense	$	257	$	2,617	$	2,874	$	510	$	5,193	$	5,703