Note 5 - Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

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

	2020			2019
Retail customers	$	22,412		$	22,101
Wholesale carriers		10,049			13,157
Other		6,158			3,723
		38,619			38,981
Less: allowance for doubtful accounts		(3,415	)		(4,627	)
Accounts receivable, net	$	35,204		$	34,354

Changes in the Allowance for Doubtful Accounts [Table Text Block]

	2020
Balance at January 1	$	4,627
Provision (recovery) for uncollectible accounts		(955	)
Charged to other accounts		-
Deductions		(257	)
Asset at September 30	$	3,415