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Stock-Based Compensation (Policies) | 6 Months Ended
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Jun. 30, 2018
Share-based Compensation [Abstract] |
Compensation-Stock Based Compensation | The Company recognizes stock-based compensation in accordance with the provisions of ASC Topic 718, Compensation-Stock Compensation. Stock-based compensation expense, excluding compensation charges related to our employee stock purchase plan, or the ESPP, was $725 and $849 for the three months ended June 30, 2018 and 2017, respectively, and $1,568 and $1,792 for the six months ended June 30, 2018 and 2017, respectively. As of June 30, 2018, there was $2,861 of total unrecognized compensation expense related to stock options, which is expected to be recognized over a weighted-average period of 3.14 years. As of June 30, 2018, there was $4,232 of total unrecognized compensation expense related to restricted stock awards, which is expected to be recognized over a weighted-average period of 2.56 years.

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- Definition Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(f) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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