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Stockholders' Equity | 6 Months Ended
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Jun. 30, 2020
Class Of Stock Disclosures [Abstract] |
Stockholders' Equity | Note 10. Stockholders’ Equity The following table presents common stock reserved for future issuance(1) (in thousands):
|  | June 30, 2020 |  |  | December 31, 2019 |
Warrants issued and outstanding |  |  | 51 |  |  |  | 51 |
Stock option awards issued and outstanding |  |  | 1,883 |  |  |  | 1,600 |
Authorized for grants under the 2016 Equity Incentive Plan(2) |  |  | 351 |  |  |  | 401 |
Authorized for grants under the 2016 Employee Stock Purchase Plan(3) |  |  | 268 |  |  |  | 186 |
|  |  | 2,553 |  |  |  | 2,238 |
(1) Treasury stock in the amount of 534,000 and 465,000 as of June 30, 2020, and December 31, 2019, respectively, are excluded from the table above. (2) On January 1, 2020, the number of authorized shares in the 2016 Equity Incentive Plan increased by 387,000 shares pursuant to the evergreen provisions of the 2016 Equity Incentive Plan. (3) On January 1, 2020, the number of authorized shares in the 2016 Employee Stock Purchase Plan increased by 97,000 shares pursuant to the evergreen provisions of the 2016 Employee Stock Purchase Plan.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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