Stock-Based Compensation

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation

Note 7 — Stock-Based Compensation

We have stock-based compensation awards consisting of stock options under the 2011 Incentive Plan, which is described in detail in our Annual Report on Form 10-K for the year ended December 31, 2020. As of March 31, 2021, there are no remaining shares available for grant under the 2011 Incentive Plan. No further shares were available for grant under any other stock incentive plan. The Company did not have any stock-based compensation expense for the three months ended March 31, 2021 and 2020.

Stock Options

The following table summarizes our stock option activity:

	Stock Options		Weighted Average Exercise Price
Outstanding December 31, 2020		1,360	$	106.00
Outstanding March 31, 2021		1,360	$	106.00
Exercisable as of March 31, 2021		971	$	106.00

As of March 31, 2021, options to purchase 1,360 shares are outstanding and 971 shares are exercisable, and the aggregate intrinsic value of all outstanding stock options was $0.0 million. No options were granted or exercised during the three months ended March 31, 2021.

As of March 31, 2021, unrecognized compensation expense related to outstanding stock options was immaterial.