Comprehensive Income (Loss)

9 Months Ended

Sep. 30, 2017

Comprehensive Income (Loss)

Comprehensive Income (Loss)

(11) Comprehensive Income (Loss)

Comprehensive income (loss) is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. Comprehensive loss for the nine months ended September 30, 2017 and 2016 is comprised of reported net loss and any change in net unrealized gains and losses on investments during each period, which is included in accumulated other comprehensive income (loss) on the accompanying balance sheets.

The following table includes the changes in the accumulated balance of the component of other comprehensive income (loss) for the nine months ended September 30, 2017 and 2016:  

	Nine Months Ended		Nine Months Ended
	September 30,		September 30,
(In thousands)	2017		2016
Accumulated unrealized loss on available-for-sale securities at beginning of period	$	(17)	$	(134)
Change during the period		17		133
Accumulated unrealized loss on available-for-sale securities at end of period	$	—	$	(1)