Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Share-based Compensation [Abstract]

Activity in Stock Award Plans

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

Authorized Shares Available for Future Award Grants	Three Months Ended March 31, 2019	From Inception to March 31, 2019
Beginning balance	49,163	300,000
Number of awards granted	—	(274,840	)
Number of awards forfeited or expired	—	24,003
Ending balance	49,163	49,163
Number of option awards exercised	1,131	119,092
Number of restricted stock awards vested	—	71,541

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

Authorized Shares Available for Future Award Grants	Three Months Ended March 31, 2019		From Inception to March 31, 2019
Beginning balance	890,857		1,900,000
Additional shares authorized	—		1,500,000
Number of awards granted	(116,833	)	(3,139,900	)
Number of awards forfeited or expired	26,145		540,069
Ending balance	800,169		800,169
Number of option awards exercised	27,815		1,352,429
Number of unrestricted stock awards granted	—		9,370
Number of restricted stock awards vested	41,468		99,661

Remaining Stock-Based Compensation Expense

We expect this compensation to be recognized over the remainder of 2019 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.

2019	$	3,577
2020	3,388
2021	1,674
2022	179
2023	—
Total	$	8,818