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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Reconciliation of Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Balance Sheets to the total end of period cash, cash equivalents and restricted cash reported within the Consolidated Statement of Cash Flows:

			December 31,
(in thousands)			2020						2019
Cash and cash equivalents			$	61,031					$	45,072
Restricted cash included in:
Prepaid expenses and other current assets			57						—
Non-current inventory and other			525						578
Total cash, cash equivalents and restricted cash			$	61,613					$	45,650

Net Product Sales

The Company’s net product sales consist of sales of HETLIOZ® and Fanapt®. Net sales by product for the years ended December 31, 2020, 2019 and 2018 were as follows:

			Year Ended December 31,
(in thousands)			2020						2019						2018
HETLIOZ® net product sales			$	160,686					$	142,980					$	115,835
Fanapt® net product sales			87,482						84,208						77,283
Total net product sales			$	248,168					$	227,188					$	193,118

Schedule of Major Customers that Represented More Than 10% of Total Revenues

The following table presents each major customer that represented more than 10% of total revenues for the years ended December 31, 2020, 2019 and 2018:

			Year Ended December 31,
Percent of Net Product Sales			2020						2019						2018
Distributor A			43		%				38		%				37		%
Distributor B			19		%				23		%				17		%
Distributor C			12		%				12		%				14		%
Distributor D			11		%				12		%				12		%
Distributor E			10		%				11		%				12		%

Schedule of Major Customers that Represented More Than 10% of Accounts Receivable, Net

The following table presents each major customer that represented more than 10% of accounts receivable, net, as of December 31, 2020 and 2019:

			December 31,
Percent of Accounts Receivable, Net			2020						2019
Distributor A			22		%				21		%
Distributor B			13		%				21		%
Distributor C			22		%				18		%
Distributor D			20		%				16		%
Distributor E			13		%				18		%

Summary of Product Return Allowance

The following table summarizes activity for product returns as of and for the years ended December 31, 2020, 2019 and 2018, all of which relates to sales of Fanapt®:

(in thousands)			Reserve for Product Returns
Balances at December 31, 2017			$	4,119
Additions			2,684
Credits/payments			(1,616)
Balances at December 31, 2018			5,187
Additions			3,138
Credits/payments			(2,205)
Balances at December 31, 2019			6,120
Additions			3,844
Credits/payments			(5,266)
Balances at December 31, 2020			$	4,698

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