Note 7 - Debt and Finance Leases (Details Textual)			1 Months Ended		3 Months Ended		24 Months Ended
	Apr. 12, 2019 USD ($)	Sep. 03, 2013 USD ($)	Jan. 31, 2019 USD ($)	Mar. 31, 2018 Subsidiary	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2018 USD ($)
Debt And Capital Leases [Line Items]
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 Credit Agreements, U.S. Liquidity, Threshold Below which No Prepayment is Required					$ 100,000,000
Term Credit Agreements, Prepayments Required in Next Fiscal Year					$ 0
Term Credit Agreements, Maximum Secured Leverage Ratio					2.75
Number of subsidiaries designated as unrestricted subsidiaries | Subsidiary				5
Total Sales					$ 291,000,000	$ 318,000,000
Percentage of aggregate sales of unrestricted subsidiaries to consolidated sales of entity					1.00%	0.00%
Aggregate assets of designated subsidiaries					$ 1,538,000,000			$ 1,511,000,000
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					$ 4,000,000	$ 2,000,000
Aggregate assets of designated subsidiaries					23,000,000			$ 21,000,000
Prior Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					200,000,000
ABL Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					$ 150,000,000
Termination date					Jun. 05, 2019
Long-term Line of Credit					$ 85,000,000			85,000,000
Excess Availability Amount					$ 21,000,000			19,000,000
Fixed Charged Coverage Ratio Required					0.0100
Excess Availability Below Which the Fixed Charge Coverage Ratio is Triggered					12.50%
Lender Commitments, Threshold Trigger, Excess Availability Amount					$ 18,750,000			$ 18,750,000
Excess Availability Percentage of Lender Commitments Threshold Triggering Cash Dominion Control					12.50%			12.50%
ABL Credit Agreement [Member] | Restricted Cash [Member]
Debt And Capital Leases [Line Items]
Eligible Cash					$ 0			$ 3,000,000
ABL Credit Agreement [Member] | Period one [Member]
Debt And Capital Leases [Line Items]
Termination date					May 26, 2021
ABL Credit Agreement [Member] | Period two [Member]
Debt And Capital Leases [Line Items]
Number of days prior to the earliest scheduled maturity date					90 days
Earliest maturity date					Sep. 03, 2019
Amended Credit Facility [Member]
Debt And Capital Leases [Line Items]
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, Calculation, Percentage of Eligible Inventory					75.00%
Excess Availability, Net Orderly Liquidation Equipment Amount					$ 10,000,000
Excess Availability, Calculation, Percentage of Eligible Equipment					75.00%
Decrease in excess availability net orderly liquidation equipment amount					$ 1,000,000
Maximum [Member]
Debt And Capital Leases [Line Items]
Secured leverage ratio					2.25%
Maximum [Member] | ABL Credit Agreement [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%
Maximum [Member] | Amended Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate					2.75%
Maximum [Member] | Amended Credit Facility [Member] | Base Rate [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate					1.75%
Minimum [Member] | ABL Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Proforma fixed charge coverage ratio					1.00%
Minimum [Member] | ABL Credit Agreement [Member] | Pro Forma [Member]
Debt And Capital Leases [Line Items]
Excess Availability Amount					$ 30,000,000
Minimum [Member] | Amended Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate					2.25%
Minimum [Member] | Amended Credit Facility [Member] | Base Rate [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate					1.25%
First Lien Term Loan [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate					6.25%
LIBOR Floor Percentage					1.00%		1.00%
Alternate Base Rate					5.25%		5.25%
Prepayment of principal amount							$ 11,000,000
First installment principal payments		$ 4,000,000
Term Credit Agreement and the Second Lien Term Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Debt Instrument Face Amount		695,000,000
Proceeds from Issuance of Other Long-term Debt		664,000,000
Debt Instrument Unamortized Discount		15,000,000
Debt Issuance Cost		16,000,000
First Lien Term Loan [Member]
Debt And Capital Leases [Line Items]
Debt Instrument Face Amount		$ 420,000,000			$ 395,000,000
Debt Instrument, Maturity Date, Description		The loans made under the Term Credit Agreement become due on the earlier to occur of (i) the maturity date of September 3, 2019 or (ii) the acceleration of such loans following the occurrence of an event of default (as defined in the Term Credit Agreement).
Debt Instrument, Maturity Date		Sep. 03, 2019			Sep. 03, 2019
First Lien Term Loan [Member] | Subsequent Event [Member]
Debt And Capital Leases [Line Items]
Prepayment of principal amount	$ 312,000,000
Second Lien Note Holders [Member]
Debt And Capital Leases [Line Items]
Debt Instrument Face Amount		$ 275,000,000
Debt Instrument, Termination Date		Nov. 15, 2016
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
Debt amount under the agreement			$ 14,000,000