|3 Months Ended|
Mar. 31, 2021
|Share-based Payment Arrangement [Abstract]|
|Stock-Based Compensation||Stock-Based Compensation
We maintain a stock-based compensation program intended to attract, retain and provide incentives for talented employees and directors and align stockholder and employee interests. During the 2021 and 2020 periods, we granted restricted stock units ("RSUs") from the 2017 Equity Compensation Plan, as amended (“2017 ECP”). RSU vesting periods are generally up to three years and/or achieving certain financial targets.
On January 1, 2021, in accordance with the plan provisions, the number of shares available for issuance under the 2017 ECP plan was increased by 150,000 shares.
For the three months ended March 31, 2021 and 2020, we recorded stock-based compensation expense for all equity incentive plans of $394,870 and $208,897, respectively. Total compensation cost not yet recognized at March 31, 2021 was $5,634,951 to be recognized over a weighted-average recognition period of approximately two years.
The following table summarizes the stock grants outstanding under the 2017 ECP and the 2010 Equity Compensation Plan (“2010 ECP”), which expired on its terms in April 2020, for the three months ended March 31, 2021:
(*) Expired April 2020
The following table summarizes the activity of stock option awards under the 2010 ECP for the three months ended March 31, 2021:
The following table summarizes the activities for our unvested RSUs for the three months ended March 31, 2021:
The entire disclosure for share-based payment arrangement.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef