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Note 9 - Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

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

September 30, 2023

December 31, 2022

Weighted

Weighted

Average

Average

Number of

Exercise

Number of

Exercise

Shares

Price

Shares

Price

Stock options outstanding and exercisable

23,176

$

38.92

28,122

$

54.03

Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

Options Outstanding																			Options Exercisable
			Exercise								Weighted				Remaining								Weighted
			Price								Average				Contractual								Average
Number of			Range								Exercise				Term				Number of				Exercise
Shares			Low				High				Price				(years)				Shares				Price
16,500			$	7.20			$	11.60			$	10.00				4.0				16,500			$	10.00
5,676				90.00				90.00				90.00				1.3				5,676				90.00
1,000				226.20				226.20				226.20				1.0				1,000				226.20
23,176			$	7.20			$	226.20			$	38.92				3.2				23,176			$	38.92

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

						Weighted-Avg.
						Grant Date
						Fair Value
		Shares				Per Share
Non-vested restricted stock as of December 31, 2022			687,000			$	3.79
Granted			936,434				2.18
Vested			(544,198	)			3.30
Modifications (accelerated vesting)			(164,000	)			2.85
Forfeited			(60,000	)			2.30
Non-vested restricted stock as of September 30, 2023			855,236			$	2.63

X

- Definition

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

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