Stock Based Compensation	9 Months Ended
Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]
Stock Based Compensation	3. STOCK BASED COMPENSATION The Company accounts for stock-based compensation under the provisions of ASC Topic 718, “Compensation - Stock Compensation.” The Company recognizes compensation cost in its financial statements for all share-based payments granted, modified, or settled during the period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the related vesting period. For the three months ended September 30, 2022 and 2021, the Company recorded compensation expense of $1,822,000 and $1,683,000, respectively, related to amortization of non-vested stock grants and performance-based awards. For the nine months ended September 30, 2022 and 2021, the Company recorded compensation expense of $5,226,000 and $4,603,000, respectively, related to amortization of non-vested stock grants and performance-based awards. During the nine months ended September 30, 2022, 5,250 options were exercised by directors of the Company at a weighted average exercise price of $32.95 per share. No stock options were exercised by employees or directors during the three months ended September 30, 2022 or the three and nine months ended September 30, 2021. During the nine months ended September 30, 2022, the Company issued 31,442 shares of non-vested stock to employees and directors which vest over periods ranging from one to five years from the respective grant dates. The per-share fair market value on the date of grant of the non-vested stock issued during the nine months ended September 30, 2022 ranged from $113.74 to $149.73, resulting in an aggregate fair value of $3.9 million. During the three months ended September 30, 2022 and 2021, 3,869 and 563 shares of non-vested stock, respectively, vested. During the nine months ended September 30, 2022 and 2021, 29,665 and 29,913 shares of non-vested stock, respectively, vested. During the nine months ended September 30, 2022, the Company granted performance-based awards that entitle recipients to earn up to 10,148 shares of Company stock if certain performance criteria are achieved over a three-year period. The Company estimated the aggregate fair value of the awards on the grant date to be $0.8 million.

Stock Based Compensation

9 Months Ended

Sep. 30, 2022

Share-Based Payment Arrangement [Abstract]

3. STOCK BASED COMPENSATION

The Company accounts for stock-based compensation under the provisions of ASC Topic 718, “Compensation - Stock Compensation.” The Company recognizes compensation cost in its financial statements for all share-based payments granted, modified, or settled during the period.

For awards with graded vesting, compensation cost is recognized on a straight-line basis over the related vesting period.

For the three months ended September 30, 2022 and 2021, the Company recorded compensation expense of $1,822,000 and $1,683,000, respectively, related to amortization of non-vested stock grants and performance-based awards. For the nine months ended September 30, 2022 and 2021, the Company recorded compensation expense of $5,226,000 and $4,603,000, respectively, related to amortization of non-vested stock grants and performance-based awards.

During the nine months ended September 30, 2022, 5,250 options were exercised by directors of the Company at a weighted average exercise price of $32.95 per share. No stock options were exercised by employees or directors during the three months ended September 30, 2022 or the three and nine months ended September 30, 2021.

During the nine months ended September 30, 2022, the Company issued 31,442 shares of non-vested stock to employees and directors which vest over periods ranging from one to five years from the respective grant dates. The per-share fair market value on the date of grant of the non-vested stock issued during the nine months ended September 30, 2022 ranged from $113.74 to $149.73, resulting in an aggregate fair value of $3.9 million. During the three months ended September 30, 2022 and 2021, 3,869 and 563 shares of non-vested stock, respectively, vested. During the nine months ended September 30, 2022 and 2021, 29,665 and 29,913 shares of non-vested stock, respectively, vested.

During the nine months ended September 30, 2022, the Company granted performance-based awards that entitle recipients to earn up to 10,148 shares of Company stock if certain performance criteria are achieved over a three-year period. The Company estimated the aggregate fair value of the awards on the grant date to be $0.8 million.