Accumulated Other Comprehensive Income (Loss)

3 Months Ended

Mar. 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 three months ended March 31, 2019 and March 31, 2018.

	Total Accumulated Other Comprehensive Income (Loss)
Balance, December 31, 2018	$	(114	)
Other comprehensive income before reclassifications		187
Amount reclassified from accumulated    other comprehensive income		—
Net current period other comprehensive income		187
Balance, March 31, 2019	$	73
Balance, December 31, 2017	$	(70	)
Other comprehensive loss before reclassifications		(59	)
Amount reclassified from accumulated other    comprehensive loss		15
Net current period other comprehensive loss		(44	)
Balance, March 31, 2018	$	(114	)

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

	Three Months Ended March 31,					Affected Line Item in the Statements of
Component of AOCI	2019		2018			Operations
Unrealized gains (losses) on available-    for-sale marketable securities
Realized gains (losses) on sale of securities	$	—	$	(15	)	Other income
		—		—		Benefit from income taxes
	$	—	$	(15	)

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