Note 11 - Share Based Compensation and Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

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

						Weighted
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic
Options	Shares			Price		Life (in Years)		Value
Balance of Outstanding Options at January 1, 2022		3,804,976		$	26.31
Granted		511,900			53.04
Exercised		(376,860	)		21.31
Forfeited		(24,750	)		39.20
Balance of Outstanding Options at December 31, 2022		3,915,266		$	30.20		6.0	$	86,815,673
Expected to vest after December 31, 2022		2,375,412		$	35.73		7.4	$	39,675,140
Vested and exercisable at December 31, 2022		1,514,871		$	21.24		3.8	$	47,018,146

Schedule of Nonvested Share Activity [Table Text Block]

				Weighted
				Average
	Number of			Grant Date
Non-vested Shares	Shares			Fair Value
Non-vested at January 1, 2022		2,576,614		$	9.35
Granted		511,900			16.81
Vested		(663,369	)		8.96
Forfeited		(24,750	)		12.05
Non-vested at December 31, 2022		2,400,395		$	11.02

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

				Weighted
				Average				Weighted
				Remaining		Aggregate		Average
				Contractual		Intrinsic		Grant Date
Stock Awards and Units	Shares			Life (in Years)		Value		Fair Value
Outstanding non-vested shares at January 1, 2022		843,820						$	31.97
Granted		368,109							50.00
Vested		(458,252	)						30.14
Forfeited		(1,000	)						49.90
Outstanding non-vested at December 31, 2022		752,677			8.4	$	42,353,135		41.87
Expected to vest after December 31, 2022		751,079			8.4	$	42,263,234