12.	Stock-Based Compensation

The Company recognizes compensation expense for all equity-based compensation awards issued to employees and directors that are expected to vest. Compensation cost is based on the fair value of awards as of the grant date. The Company recognized $0.5 million and $0.4 million of stock-based compensation expense related to equity awards for the three months ended September 30, 2017 and 2016, respectively, and recognized $1.8 million and $0.9 million of stock-based compensation expense related to equity awards for the nine months ended September 30, 2017 and 2016, respectively. In addition to the equity-based compensation expense recognized, the Company also recognized $92,000 and $80,000 of stock-based compensation related to the change in the fair value of cash-settled restricted stock units ("RSUs") during the three and nine months ended September 30, 2017, respectively.

For the three and nine months ended September 30, 2017, the Company did not grant market-based RSUs. For the three and nine months ended September 30, 2016, the Company granted 1,162,500 and 1,322,500 market-based RSUs with an aggregate fair value of $1.6 million and $1.9 million, respectively. The RSUs vest upon the achievement of a specified price of the Company's shares. The fair value of the RSUs is expensed ratably over the requisite service period, which ranges between one and five years.

The market-based RSUs granted during 2016 include 450,000 RSUs, which were canceled and reissued in accordance with the Chief Executive Officer's amended employment agreement dated July 1, 2016 and approved by the Board of Directors. The aggregate fair value of the RSUs reissued totaled $469,000.

Additionally, on July 1, 2016, the Board of Directors approved an amendment to the market-based RSU agreements with other employees, which reduced the time period from 90 to 30 consecutive trading days during which the volume weighted-average price ("VWAP") target must be attained in order for the RSUs to vest. This change resulted in an increase in the fair value of the RSUs granted of approximately $250,000, which will be expensed ratably over the remaining requisite service period.

During the three months ended September 30, 2017, the Company did not grant time-based RSUs. For the nine months ended September 30, 2017, the Company granted 396,677 time-based RSUs with an aggregate fair value of $1.4 million. A portion of the RSUs vested immediately, a portion will vest quarterly in equal amounts over the course of eight quarters, a portion will vest one year after grant, and the remainder will vest annually in equal amounts over the course of three years. For the three and nine months ended September 30, 2016, the Company granted 70,000 and 204,824 time-based RSUs with an aggregate fair value of $172,300 and $471,650, respectively. The fair value of the RSUs is expensed ratably over the requisite service period.

The Company did not grant stock options during the three or nine month periods ended September 30, 2017. The Company did not grant any options during the three month period ended September 30, 2016, and granted 40,000 stock options during the nine month period ended September 30, 2016. The fair value of the options granted during the nine months ended September 30, 2016 was $46,000.