Other Comprehensive Income (Loss)

3 Months Ended

Mar. 31, 2017

Stockholders' Equity Note [Abstract]

Other Comprehensive Income (Loss)

4. Other Comprehensive Income (Loss)

The following tables summarize the accumulated balances related to each component of other comprehensive income (loss) for the three months ended March 31, 2016 and 2017:

			Accumulated
	Unrealized Net		Other
	Gains (Losses)		Comprehensive
	on Securities		Gains (Losses)
Balance at December 31, 2015	$	(79,399)	$	(79,399)
Unrealized gain		110,136		110,136
Net amount reclassified to net loss		—		—
Other comprehensive income		110,136		110,136
Balance at March 31, 2016	$	30,737	$	30,737

			Accumulated
	Unrealized Net		Other
	Losses on		Comprehensive
	Securities		Losses
Balance at December 31, 2016	$	(41,196)	$	(41,196)
Unrealized loss		(12,681)		(12,681)
Net amount reclassified to net loss		—		—
Other comprehensive loss		(12,681)		(12,681)
Balance at March 31, 2017	$	(53,877)	$	(53,877)