Stock Options and Restricted Stock Units (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2019 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Share-based Payment Arrangement [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Summary of Common Stock Options Issued Under Option Plans |
A summary of the common stock options issued under the Option Plans and the 2016 Plan for the period from December 31, 2018 through December 31, 2019 follows:
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Schedule of Vested and Exercisable Options at Period End |
The vested and exercisable options at period end follows:
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Schedule of Fair Value of New Stock Options Granted Using the Assumptions |
The fair value of new stock options granted and repriced stock options using the Black-Scholes option pricing model was calculated using the following assumptions for the year ended December 31, 2018:
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