Note 12 - Employee Benefit Plans	12 Months Ended
Dec. 31, 2021
Notes to Financial Statements
Compensation and Employee Benefit Plans [Text Block]	*NOTE 12.* EMPLOYEE BENEFIT PLANS** We contribute to multiemployer pension defined benefit plans under terms of collective-bargaining agreements that cover our union-represented employees. Contributions, based on wages paid to covered employees, totaled approximately $0.9 million, $1.0 million and $1.8 million for the years ended December 31, 2021, 2020 and 2019, respectively. These aggregate contributions were not individually significant to any of the respective plans. Our share of the unfunded vested liability related to multi-employer plans, if any, is not determinable and our participation is not individually significant on an individual multiemployer plan basis. We have retirement savings plans under Section 401(k) of the Internal Revenue Code covering our non-union employees. The plans allow employees to defer up to the lesser of the Internal Revenue Code prescribed maximum amount or 100% of their income on a pre-tax basis through contributions to the plans. The expense of our voluntary contributions to the 401(k) profit-sharing plans and trusts, net of realized forfeitures, was $3.4 million, $4.0 million and $6.3 million for the years ended December 31, 2021, 2020 and 2019, respectively.

The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans.

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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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