Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2017

Share-based Compensation [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, 2017		From Inception to June 30, 2017
Beginning balance	1,248,651		1,900,000
Additional shares authorized	—		1,500,000
Number of awards granted	(254,620	)	(2,867,186	)
Number of awards forfeited or expired	3,228		464,445
Ending balance	997,259		997,259
Number of option awards exercised	74,466		1,023,534
Number of unrestricted stock awards granted	725		8,050
Number of restricted stock awards vested	—		36,970

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

Authorized Shares Available for Future Award Grants	Six Months Ended June 30, 2017		From Inception to June 30, 2017
Beginning balance	74,771		300,000
Number of awards granted	(12,958	)	(262,190	)
Number of awards forfeited or expired	—		24,003
Ending balance	61,813		61,813
Number of option awards exercised	6,727		59,200
Number of restricted stock awards vested	22,716		54,272

Remaining Stock-Based Compensation Expense

We expect this compensation to be recognized over the remainder of 2017 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.

2017	$	2,371
2018	3,981
2019	2,718
2020	1,111
2021	393
2022	40
Total	$	10,614