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Stock-Based Compensation - Restricted Stock Units (Details) $ / shares in Units, $ in Thousands | 6 Months Ended
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Jun. 30, 2018 USD ($) $ / shares shares
Weighted Average Exercise Price Per Share |
Unrecognized stock-based compensation expense | $ | $ 5,900
Unrecognized compensation expense, weighted-average period expected to be recognized | 2 years 10 months 24 days
RSU |
Number of Restricted Stock Units |
Balance, beginning of period | shares | 30,680
Granted | shares | 60,450
Cancelled/forfeited | shares | (1,900)
Balance, end of period | shares | 89,230
Weighted Average Exercise Price Per Share |
Balance, beginning of period (price per share) | $ / shares | $ 10.55
Granted (price per share) | $ / shares | 8.66
Cancelled/forfeited | $ / shares | 8.39
Balance, end of period (price per share) | $ / shares | $ 9.32
2016 Employee Incentive Plan | RSU |
Weighted Average Exercise Price Per Share |
Unrecognized stock-based compensation expense | $ | $ 625,000
Unrecognized compensation expense, weighted-average period expected to be recognized | 2 years 10 months 24 days

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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Net number of non-option equity instruments granted to participants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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