Note 2 - Details of Consolidated Balance Sheet Accounts - Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Vacation	$ 7,733	$ 6,558
Salaries and wages	7,584	5,438
Accrued expenses	6,299	6,738
Other	2,881	2,946
Accrued Liabilities, Current, Total	$ 24,497	$ 21,680

Accrued expenses.

No definition available.

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable for unused vacation time owed to employees based on the entity's vacation benefit given to its employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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-Name Accounting Standards Codification
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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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