Note 1 - Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Principal Transactions Revenue [Table Text Block]

	Year Ended December 31,
	2020			2019			2018
Trade revenue	$	5		$	8		$	3
Trade expense		(5	)		(8	)		(3	)
Net trade income (loss)	$	-		$	-		$	-

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

	Year Ended
	December 31, 2020
Beginning balance	$	11
Provision for credit losses		2
Amounts written off		(3	)
Amounts recovered from previous write-offs		-
Ending balance	$	10

Property, Plant and Equipment [Table Text Block]

							Estimated
	December 31,						Useful Lives
	2020			2019			(in years)
Property and equipment, net:
Land	$	123		$	119
Buildings and improvements		305			291		7	to	40
Equipment		834			776		3	to	20
		1,262			1,186
Accumulated depreciation		(525	)		(461	)
Total	$	737		$	725

Schedule of Disposal of Assets and Purchase of Property and Equipment [Table Text Block]

	Year ended December 31,
	2020			2019			2018
Gain on disposal of assets, net:
Proceeds from sale of assets	$	9		$	253		$	9
Proceeds from Repack		29			41			14
Net book value of assets disposed		(9	)		(240	)		(6	)
Total	$	29		$	54		$	17
Purchase of property and equipment:
Recurring purchases - operations	$	87		$	89		$	41
Repack		23			20			27
Repack related		-			1			2
Total	$	110		$	110		$	70

Schedule of Weighted Average Number of Shares [Table Text Block]

	Year Ended December 31,
	2020		2019		2018
Weighted average shares outstanding, basic		96		99		88
Weighted average shares underlying stock options and restricted shares		1		1		1
Weighted average shares outstanding, diluted		97		100		89

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	December 31,
	2020			2019
Items included in accumulated other comprehensive loss:
Increase in pension liability	$	(52	)	$	(42	)
Income tax benefit		(13	)		(11	)
Accumulated other comprehensive loss	$	(39	)	$	(31	)