Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement [Abstract]

Activity in Stock Award Plans

The activity in the Stock Plan is displayed in the following table:

Authorized Shares Available for Future Award Grants	Six Months Ended June 30, 2020	From Inception to June 30, 2020
Beginning balance	834,910	1,900,000
Additional shares authorized	—	1,500,000
Number of awards granted	(165,024)	(3,281,445)
Number of awards forfeited or expired	34,374	585,705
Ending balance	704,260	704,260
Number of option awards exercised	7,200	1,450,389
Number of unrestricted stock awards granted	—	10,090
Number of restricted stock awards vested	63,600	164,378

The activity in the Director Stock Plan is displayed in the following table:

Authorized Shares Available for Future Award Grants	Six Months Ended June 30, 2020	From Inception to June 30, 2020
Beginning balance	34,863	300,000
Additional authorization	150,000	150,000
Number of awards granted	(24,728)	(313,868)
Number of awards forfeited or expired	—	24,003
Ending balance	160,135	160,135
Number of option awards exercised	14,183	133,275
Number of restricted stock awards vested	14,300	98,491

Remaining Stock-Based Compensation Expense

We expect this compensation to be recognized over the remainder of 2020 and subsequent years according to the table below, except with respect to awards that are accelerated by the Board of Directors, in which case we will recognize any remaining compensation expense in the period in which the awards are accelerated.

2020	$	2,159
2021	2,666
2022	1,146
2023	225
2024	82
2025	11
Total	$	6,289