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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Schedule of significant assumptions

The significant assumptions used in the Monte Carlo simulation are presented in the following table.

						Year ended December 31,
						2019
Expected volatility						71.05		%
Expected life (years)						2.0
Risk-free interest rate						1.63		%

Unrecognized compensation expense is expected to be recognized

At December 31, 2020, the Company had unrecognized compensation expense of $3,691 related to granted but unvested stock awards. That expense is expected to be recognized as follows:

Year Ended December 31,
2021			$	2,317
2022			864
2023			510
			$	3,691

Summary of restricted stock activity

The following table summarizes restricted stock activity under the 2016 Plan from January 1, 2019 through December 31, 2020:

			Number of Shares						Weighted Average
Unvested, January 1, 2019			1,027						$	9.83
Granted			1,884						$	2.58
Vested			(261)						$	8.76
Forfeiture			(32)						$	5.85
Unvested, December 31, 2019			2,618						$	6.91
Granted			—						$	—
Vested			(675)						$	9.46
Forfeiture			(57)						$	13.16
Unvested December 31, 2020			1,886						$	5.14

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Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement.

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