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Note 3 - Trade Accounts Receivable - Changes in Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance—beginning of year	$ 4,526	$ 3,482	$ 2,952
Provision for bad debts	917	1,044	530
Charge-offs	(62)	0	0
Recoveries	0	0	0
Balance—end of year	$ 5,381	$ 4,526	$ 3,482

X

- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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X

- Definition

Amount of increase in allowance for credit loss on financing receivable from recovery.

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X

- Definition

Amount of writeoff of financing receivable, charged against allowance for credit loss.

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X

- Definition

Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

+ References

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