Stock-Based Compensation

6 Months Ended

Jun. 30, 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 June 30, 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 and six months ended June 30, 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 June 30, 2021		1,360	$	106.00
Exercisable as of June 30, 2021		1,068	$	106.00

As of June 30, 2021, options to purchase 1,360 shares are outstanding and 1,068 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 six months ended June 30, 2021.

As of June 30, 2021, unrecognized compensation expense related to outstanding stock options was immaterial.