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Note 1 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Percentage of LIFO Inventory	68.00%	72.00%
Depreciation, Total	$ 13,300	$ 11,200	$ 11,400
Goodwill, Impairment Loss	0	0	0
Advertising Expense	3,300	1,900	2,100
Performance Shares [Member]
Share-Based Payment Arrangement, Expense	$ 3,000	$ 2,000	$ 300
The 2015 Omnibus Incentive Plan [Member] | Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	2 years
The 2015 Omnibus Incentive Plan [Member] | Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period	3 years
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