Note 14 - Equity Incentive Plan (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Nov. 04, 2021	Mar. 17, 2021	Dec. 31, 2019	Jun. 13, 2017
Share-Based Payment Arrangement, Expense, Tax Benefit		$ 1,100,000
Effective Income Tax Rate Reconciliation, Share-based Compensation, Windfall Tax Benefit, Amount		(500,000)	$ 100,000	$ 200,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value		$ 10,000	$ 300,000	$ 2,800,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)		553,827
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)		1,530,703	1,175,993
Premium-Priced Employee Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Premium Priced Options, Exercise Price as Percentage of Market Price		110.00%
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)		398,314
Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)		10 years
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total		$ 7,400,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		1 year 9 months 18 days
Total Shareholder Return ("TSRs") Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		2 years 8 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)		6 years 3 months 18 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)		139,168
Restricted Stock Units (RSUs) [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total		$ 12,300,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		1 year 9 months 18 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)		$ 25.14	$ 35.88	$ 38.20
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value		$ 6,000,000.0	$ 3,700,000	$ 2,200,000
Performance Shares [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)		$ 32.53	$ 0	$ 36.93
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value		$ 600,000	$ 0	$ 0
Performance Shares [Member] | Granted in 2019 [Member]
Share-based Compensation, Performance Shares Measured by Business Targets							30.00%
Share-based Compensation, Performance Shares Measured by Financial Targets		55.00%
Share-based Compensation, Performance Shares Measured by Financial Targets, Not Achieved		15.00%
Performance Shares [Member] | Granted in 2020 [Member]
Share-based Compensation, Performance Shares Measured by Financial Targets, Not Achieved		60.00%
Share-based Compensation, Performance Shares Measured by Business Targets, Not Achieved		20.00%	20.00%
Selling, General and Administrative Expenses [Member]
Share-Based Payment Arrangement, Expense, Tax Benefit	$ 1,800,000
Minimum [Member] | Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		3 years
Minimum [Member] | Total Shareholder Return ("TSRs") Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Target Number		0.00%
Minimum [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		3 years
Minimum [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		3 years
Maximum [Member] | Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		4 years
Maximum [Member] | Total Shareholder Return ("TSRs") Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Target Number		150.00%
Maximum [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		4 years
The 2017 Plan [Member]
Number of Shares Available for Grant Reduced By Each Share Award Issued Other Than Options or SARs (in shares)								2
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)								4,600,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)		1,200,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)		10 years
The 2017 Plan [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		1 year
The 2017 Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		4 years
The 2021 Inducement Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)		4,883
Common Stock, Capital Shares Reserved for Future Issuance (in shares)					125,000
Employee Stock Purchase Plan (ESPP) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)						200,000
Share Based Compensation Arrangement by Share Based Payment Award Number of Shares Authorized per Offering Period (in shares)						800
Share Based Compensation Arrangement by Share Based Payment Award, Value Authorized						$ 25,000
Represents Share Based Compensation Arrangement by Share Based Payment Award, Payroll Deduction percentage						10.00%
Represents Share Based Compensation Arrangement by Share Based Payment Award, the Purchase Price for Each Share Purchased, Percentage						85.00%