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Note 9 - Share-based Compensation and Employee Benefit Plan (Tables)

6 Months Ended

Jun. 30, 2021

Notes Tables

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

Three months ended June 30, 2021:		Number of Shares Awarded				Weighted Average Grant Date Fair Value
Unvested at March 31, 2021			17,798			$	6.88
Granted			20,476			$	10.48
Vested			(3,004	)		$	16.90
Unvested at June 30, 2021			35,270			$	8.12

Six months ended June 30, 2020:
Unvested at December 31, 2020			18,498			$	7.29
Granted			20,476			$	10.48
Vested			(3,704	)		$	17.08
Unvested at June 30, 2021			35,270			$	8.12

Three months ended June 30, 2020:		Number of Shares Awarded				Weighted Average Grant Date Fair Value
Unvested at March, 2020			19,298			$	12.73
Granted			12,484			$	6.12
Vested			(3,000	)		$	16.90
Forfeited			(2,185	)		$	15.92
Unvested at June 30, 2020			26,597			$	8.89

Six months ended June 30, 2020:
Unvested at December 31, 2019			21,470			$	12.91
Granted			12,484			$	6.12
Vested			(5,172	)		$	15.92
Forfeited			(2,185	)		$	15.92
Unvested at June 30, 2020			26,597			$	8.89