Stock Benefit Plans, Stock-Based Compensation and Equity Transactions (Tables)

12 Months Ended

Dec. 31, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock Option Activity

A summary of the Company’s stock option activity under the Plans and related information is as follows (in thousands, except as indicated and per share data), as adjusted for the 1-for-12 reverse stock split:

	Shares			Weighted average exercise price		Weighted average remaining contractual term (in years)		Aggregate intrinsic value
Outstanding at December 31, 2015		637		$	24.96		6.36	$	—
Granted		668		$	4.43		—		—
Forfeited		(150	)	$	29.42		—		—
Outstanding at December 31, 2016		1,155		$	12.17		7.75	$	—
Options vested and exercisable at December 31, 2016		435		$	21.11		5.20	$	—
Options vested and expected to vest at December 31, 2016		991		$	13.37		7.41	$	—

Summary of Information about Restricted Stock Awards, Restricted Stock Units and Performance-Based Restricted Units Activity (Detail)

The following table summarizes information about the restricted stock awards, restricted stock units and performance-based restricted units activity (in thousands, except as indicated and per share data), as adjusted for the 1-for-12 reverse stock split:

	Shares			Weighted average grant date fair value		Weighted average remaining recognition period (in years)
Unvested at December 31, 2015		260		$	16.91		1.48
Awarded		969		$	5.79
Vested		(64	)	$	9.73
Forfeited		(73	)	$	16.65
Unvested at December 31, 2016		1,092		$	7.48		3.02

Summary of Common Stock Reserved for Future Issuance

Common stock reserved for future issuance consists of the following (in thousands), as adjusted for the 1-for-12 reverse stock split:

	December 31, 2016
Stock options outstanding		1,155
Awards outstanding		1,092
Warrants outstanding		8
Authorized for future grant under 2016 and INDC Plans		395
		2,650