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Note 23 - Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

		Restricted				Weighted-Average
		Stock				Grant Date
		Units/Awards				Fair Values
Outstanding on December 31, 2021			872,877			$	8.10
Granted			651,375			$	4.60
Vested			361,708			$	5.04
Forfeited			21,667			$	5.52
Outstanding on December 31, 2022			1,140,877			$	6.30

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

										Average
						Weighted				Remaining				Aggregate
		Shares				Exercise				Contractual				Intrinsic
		Under				Price				Life				Value
		Option				Per Share				(Years)				($ millions)
Outstanding on December 31, 2021			7,234,449			$	7.29
Expired			330,138			$	14.24
Exercised			20,000			$	3.03
Outstanding on December 31, 2022			6,884,311			$	6.97				2.73			$	—
Exercisable on December 31, 2022			6,745,963			$	6.99				2.72			$	—
Expected to vest December 31, 2022			138,348			$	5.57				3.14			$	—

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		Year Ended
		December 31,
		2020
Weighted-average fair value of options granted		$	1.50
Weighted-average risk-free interest rate			2.43	%
Expected option lives (in years)			3.7
Weighted-average volatility			98	%
Expected dividend yield			0.00	%

		July 27, 2020
		Option Awards
Weighted-average fair value of options granted		$	6.57
Range of risk-free interest rates			0.11% - 0.30%
Weighted-average term (in years)			5.57
Weighted-average volatility			98	%
Weighted-average expected dividend yield			0.00	%

X

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

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-Section 50
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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.

+ References

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- Definition

Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

+ References

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