Other Long-term Liabilities (Tables)

12 Months Ended

Dec. 31, 2016

Other Liabilities Disclosure [Abstract]

Summary of Other Long-term Liabilities

Other long-term liabilities consist of the following:

	December 31,
	2016			2015
	(In thousands)
Asset retirement obligations (ARO)	$	—		$	397
Deferred rent		1,125			163
		1,125			560
Current maturities of other long-term liabilities		(154	)		(409	)
Other long-term liabilities, less current maturities	$	971		$	151

Summary of ARO Activity

A summary of ARO activity consists of the following:

	Year Ended December 31,
	2016			2015
	(In thousands)
Balance at beginning of period	$	397		$	1,018
Accretion of discount expense		—			21
Settlement costs		(397	)		(642	)
Balance at end of period	$	—		$	397