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Stockholders' Equity | 3 Months Ended
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Mar. 31, 2021
Class Of Stock Disclosures [Abstract] |
Stockholders' Equity | Note 13. Stockholders’ Equity In August 2016, the Company's Board adopted the 2016 Equity Inventive Plan (the 2016 Plan) for employees, directors and consultants. In February 2021, the Board adopted the 2021 Employment Inducement Incentive Award Plan (Inducement Plan), which provides for grants of equity-based awards. 300,000 shares were initially reserved under the Inducement Plan. In January 2021, in connection with the NimbeLink acquisition, the Company assumed the NimbeLink Corp 2016 Stock Incentive Plan and stock options to purchase 22,871 shares of common stock issuable thereunder. The following table presents common stock reserved for future issuance(1) (in thousands):
|  | March 31, 2021 |  |  | December 31, 2020 |
Warrants issued and outstanding |  |  | 10 |  |  |  | 51 |
Stock option awards issued and outstanding |  |  | 2,036 |  |  |  | 1,760 |
Authorized for grants under the 2016 Equity Incentive Plan(2) |  |  | 303 |  |  |  | 357 |
Authorized for grants under the Inducement Plan(3) |  |  | 192 |  |  |  | — |
Authorized for grants under the 2016 Employee Stock Purchase Plan(4) |  |  | 343 |  |  |  | 256 |
|  |  | 2,884 |  |  |  | 2,424 |
(1) Treasury stock in the amount of 534,000 as of March 31, 2021 and December 31, 2020 are excluded from the table above. (2) On January 1, 2021, the number of authorized shares in the 2016 Equity Incentive Plan increased by 391,356 shares pursuant to the evergreen provisions of the 2016 Equity Incentive Plan. (3) On January 7, 2021, 300,000 shares were authorized pursuant to the terms of the Inducement Plan; 110,000 shares were issued under the inducement plan during the three months ended March 31, 2021 (4) On January 1, 2021, the number of authorized shares in the 2016 Employee Stock Purchase Plan increased by 98,000 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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