Note 5 - Receivables and Allowance for Credit Losses (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	March 31,			December 31,
	2022			2021
Accounts receivable–trade	$	46,627		$	39,903
Less allowance for credit losses		(445	)		(519	)
Receivables, net	$	46,182		$	39,384

Accounts Receivable, Allowance for Credit Loss [Table Text Block]

	Allowance for Credit Losses
	Three Months Ended March 31,
	2022			2021
Allowance - beginning of period	$	519		$	484
Provision (adjustment) for expected credit losses		(51	)		48
Amounts written off against the allowance		(23	)		(8	)
Allowance - end of period	$	445		$	524