Accumulated Other Comprehensive Income (Loss)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Accumulated Other Comprehensive Income (Loss)

4. Accumulated Other Comprehensive Income (Loss)

The following table summarizes the changes in accumulated other comprehensive income (loss), or AOCI, net of tax, from unrealized gains (losses) on available-for-sale marketable securities, the Company’s only component of AOCI, for the years ended December 31, 2019, 2018 and 2017.

	Total Accumulated
	Other Comprehensive
	Income (Loss)
Balance, December 31, 2016	$	3
Other comprehensive loss before reclassifications		(68)
Amount reclassified from accumulated other comprehensive income		(5)
Net current period other comprehensive loss		(73)
Balance, December 31, 2017		(70)
Other comprehensive loss before reclassifications		(49)
Amount reclassified from accumulated other comprehensive loss		5
Net current period other comprehensive loss		(44)
Balance, December 31, 2018		(114)
Other comprehensive income before reclassifications		284
Amount reclassified from accumulated other comprehensive loss		—
Net current period other comprehensive income		284
Balance, December 31, 2019	$	170

The reclassifications out of AOCI and into net loss were as follows:

							Affected Line Item in the
	Year Ended December 31,						Statements of
Component of AOCI	2019		2018		2017		Operations
Unrealized gains (losses) on available-for-sale marketable securities
Realized (losses) gains on sale of securities	$	—	$	(5)	$	5	Other income
		—		—		—	Benefit from income taxes
	$	—	$	(5)	$	5

The amounts reclassified out of AOCI into net loss were determined by specific identification.