Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2016

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	Three Months Ended March 31, 2016		From Inception to March 31, 2016
Beginning balance	1,394,578		1,900,000
Additional shares authorized	—		1,500,000
Number of awards granted	(249,000	)	(2,611,928	)
Number of awards forfeited or expired	100,600		458,106
Ending balance	1,246,178		1,246,178
Number of option awards exercised	138,389		788,908
Number of unrestricted stock awards granted	870		7,215
Number of restricted stock awards vested	18,394		36,970

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

Authorized Shares Available for Future Award Grants	Three Months Ended March 31, 2016	From Inception to March 31, 2016
Beginning balance	69,938	300,000
Number of awards granted	—	(236,065	)
Number of awards forfeited or expired	18,000	24,003
Ending balance	87,938	87,938
Number of option awards exercised	14,987	29,794
Number of restricted stock awards vested	—	20,171

Remaining Stock-Based Compensation Expense

We expect this compensation to be recognized over the remainder of 2016 and subsequent years according to the following table, 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.

2016	$	2,214
2017	2,775
2018	2,260
2019	1,193
2020	640
2021	72
Total	$	9,154