Note 9 - Debt and Finance Leases (Details Textual)										1 Months Ended			12 Months Ended
		Aug. 03, 2020 USD ($) shares	Jul. 29, 2020 USD ($) d $ / shares	Mar. 27, 2020 USD ($)	Mar. 26, 2020 USD ($)	May 24, 2019 USD ($)	May 20, 2019 USD ($) $ / shares	Apr. 12, 2019 USD ($)	Sep. 03, 2013 USD ($)	Sep. 30, 2020 USD ($) shares	Jan. 31, 2019 USD ($)	Mar. 31, 2018 Subsidiary	Dec. 31, 2020 USD ($) $ / shares	Dec. 31, 2019 USD ($) $ / shares	Mar. 31, 2020 USD ($)	Jan. 27, 2020 USD ($)	Jan. 26, 2020 USD ($)
Debt And Capital Leases [Line Items]
Common stock, par value | $ / shares													$ 0.01	$ 0.01
Fair value of derivative liability													$ 9,000,000	$ 52,000,000
Percentage of Stock of Material Domestic Subsidiaries Securing Credit Agreement									100.00%
Percentage of Stock of Material First Tier Foreign Subsidiaries Securing Credit Agreement									65.00%
Term Collateral, Carrying Value													1,412,000,000	1,302,000,000
ABL Collateral, Carrying Value													1,412,000,000	1,302,000,000
Number of subsidiaries designated as unrestricted subsidiaries | Subsidiary												5
Total sales	[1]												$ 1,029,000,000	$ 1,242,000,000
Percentage of aggregate sales of unrestricted subsidiaries to consolidated sales of entity													1.00%	1.00%
Aggregate assets of designated subsidiaries													$ 1,248,000,000	$ 1,415,000,000
Percentage of aggregate assets of unrestricted subsidiaries to consolidated assets of entity													1.00%	1.00%
Unrestricted Subsidiaries [Member]
Debt And Capital Leases [Line Items]
Total sales													$ 6,000,000	$ 12,000,000
Aggregate assets of designated subsidiaries													$ 15,000,000	20,000,000
ABL Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Debt instrument, maturity date													May 26, 2021
Line of credit facility, maximum borrowing capacity				$ 110,000,000									$ 150,000,000			$ 120,000,000	$ 150,000,000
Lender commitments, threshold trigger, excess availability amount				$ 13,750,000									$ 13,750,000	$ 18,750,000		$ 15,000,000	$ 18,750,000
Excess availability, calculation, percentage of eligible equipment													70.00%
Excess availability, net orderly liquidation equipment amount													$ 12,750,000
Fixed charged coverage ratio required													1.00	1.0
Excess availability below which the fixed charge coverage ratio is triggered													12.50%	12.50%
Excess availability percentage of lender commitments threshold triggering cash dominion control													12.50%	12.50%
Long-term line of credit													$ 90,000,000	$ 80,000,000
Excess availability, calculation, percentage of eligible receivables less a dilution reserve													85.00%
Excess availability, calculation, percentage of net orderly liquidation value													85.00%
Excess availability amount													$ 20,000,000	$ 22,000,000
Excess availability, calculation, percentage of eligible inventory														75.00%
ABL Credit Agreement [Member] | Minimum [Member]
Debt And Capital Leases [Line Items]
Proforma fixed charge coverage ratio													1.0
ABL Credit Agreement [Member] | Minimum [Member] | Pro Forma [Member]
Debt And Capital Leases [Line Items]
Excess availability amount													$ 30,000,000
ABL Credit Agreement [Member] | Maximum [Member]
Debt And Capital Leases [Line Items]
Percentage of aggregate consolidated sales to qualify Restricted Subsidiaries to be designated as Unrestricted Subsidiaries													7.50%
Percentage of aggregate consolidated assets to qualify Restricted Subsidiaries to be designated as Unrestricted Subsidiaries													7.50%
ABL Credit Agreement [Member] | Restricted Cash [Member]
Debt And Capital Leases [Line Items]
Eligible cash													$ 35,000,000	$ 22,000,000
Amended Credit Facility [Member]
Debt And Capital Leases [Line Items]
Excess availability, calculation, percentage of eligible equipment				70.00%	75.00%
Excess availability, net orderly liquidation equipment amount					$ 6,000,000										$ 14,750,000
Decrease in excess availability net orderly liquidation equipment amount													$ 1,000,000
Debt instrument, amendment description													The $14.75 million amount decreases by $1 million per quarter starting on July 1, 2020 until maturity or the amount is decreased to $0, whichever comes first
Amended Credit Facility [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt And Capital Leases [Line Items]
Debt instrument, basis spread on variable rate				3.50%	2.25%
Amended Credit Facility [Member] | Minimum [Member] | Base Rate [Member]
Debt And Capital Leases [Line Items]
Debt instrument, basis spread on variable rate				2.50%	1.25%
Amended Credit Facility [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt And Capital Leases [Line Items]
Debt instrument, basis spread on variable rate				4.00%	2.75%
Amended Credit Facility [Member] | Maximum [Member] | Base Rate [Member]
Debt And Capital Leases [Line Items]
Debt instrument, basis spread on variable rate				3.00%	1.75%
Term Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Debt instrument, aggregate principal amount									$ 420,000,000
Prepayment of principal amount						$ 83,000,000		$ 312,000,000
RED-Rochester, LLC [Member]
Debt And Capital Leases [Line Items]
Payment received under the agreement											$ 14,000,000
Minimum payments required under the agreement											2,000,000
Long-term debt											$ 14,000,000
Debt Instrument Maturity Month and Year													2033-08
Convertible Notes Due 2021 [Member]
Debt And Capital Leases [Line Items]
Debt instrument, aggregate principal amount							$ 100,000,000
Convertible notes, due							2021
Common stock, par value | $ / shares			$ 0.01				$ 0.01
Debt instrument, maturity date							Nov. 01, 2021
Debt instrument, interest rate							5.00%
Principal amount of debt converted to equity			$ 95,000,000
Converted notes, conversion date													Jul. 29, 2020
Debt instrument convertible trading days | d			5
Conversion shares, issuance date													Aug. 03, 2020
Accumulated interest on initial converted notes		$ 5,600,000
Remaining debt face amount		$ 5,000,000
Net proceeds received to derivative liability													$ 14,000,000
Carrying value of stock at issuance							$ 84,000,000
Proceeds from borrowings						$ 100,000,000
Fair value of derivative liability							14,000,000
Transaction costs							$ 2,000,000
Convertible Notes Due 2021 [Member] | Common Stock [Member]
Debt And Capital Leases [Line Items]
Conversion of notes, shares issued | shares		29,922,956
Mandatory Converted Notes [Member]
Debt And Capital Leases [Line Items]
Debt instrument, aggregate principal amount										$ 5,000,000
Converted notes, conversion date										Sep. 30, 2020
Mandatory Converted Notes [Member] | Common Stock [Member]
Debt And Capital Leases [Line Items]
Conversion of notes, shares issued | shares										1,574,892

[1] Sales are reported in the geographic area in which they originate. No non-U.S. country generated more than 10% of net sales in the years ended December 31, 2020 and 2019.