Note 5 - Debt and Finance Leases (Details Textual) - USD ($)				3 Months Ended
	Mar. 30, 2021	Feb. 26, 2021	May 24, 2019	Mar. 31, 2021	Feb. 25, 2021	Dec. 31, 2020
Debt And Capital Leases [Line Items]
Proceeds from sale of common stock				$ 10,000,000
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%
Amended and Restated ABL Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Debt instrument, maturity date				Feb. 26, 2024
Credit facility, maturity date				The Amended ABL Credit Agreement amends the ABL Credit Agreement to, among other things, (i) extend the maturity date to February 26, 2024 or the date that is 90 days prior to the earliest scheduled maturity date or mandatory redemption date of any of the Company’s Term Loan Credit Agreement, Convertible Notes, Series B Preferred Stock, Series C Preferred Stock or any refinancings of any of the foregoing
Line of credit facility, maximum borrowing capacity		$ 90,000,000			$ 110,000,000
Long-term line of credit				$ 42,000,000		$ 90,000,000
Minimum liquidity value, required to maintain at end of each quarter				80,000,000
Minimum liquidity current balance				$ 284,000,000
Excess availability percentage of lender commitments threshold triggering cash dominion control				12.50%		12.50%
Excess availability below which fixed charge coverage ratio is triggered				12.50%		12.50%
Fixed charged coverage ratio required				1.0		1.0
Lender commitments, threshold trigger, excess availability amount				$ 11,250,000		$ 13,750,000
Excess availability amount				$ 41,000,000		20,000,000
Amended Credit Facility [Member]
Debt And Capital Leases [Line Items]
Unused line fee payment description	The Company will pay an unused line fee of 37.5-50 basis points per annum, depending on whether the unused portion of the maximum amount available is less than or equal to 50% or greater than 50%, respectively.
Amended Credit Facility [Member] | Letter of Credit [Member]
Debt And Capital Leases [Line Items]
Line of credit facility fee payment description	The Company will pay a letter of credit fee of 3.50%-4.00% per annum, based on Excess Availability, on issued and outstanding letters of credit, in addition to a fronting fee of 25 basis points on such letters of credit.
ABL Credit Agreement [Member] | Restricted Cash [Member]
Debt And Capital Leases [Line Items]
Eligible cash						$ 35,000,000
Letter of Credit Facility Agreement [Member]
Debt And Capital Leases [Line Items]
Line of credit facility, maximum borrowing capacity		$ 50,000,000
Minimum percentage of aggregate amount of letters of credit issued and outstanding		103.00%
Credit facility term				3 years
Letters of Credit issued				$ 48,000,000
Letter of credit cash collateral				49,000,000
Proceeds of the financing transactions deposited in cash collateral account				14,000,000
Minimum liquidity requirement				80,000,000
Convertible Notes Embedded Derivative [Member]
Debt And Capital Leases [Line Items]
Net proceeds received to derivative liability				12,000,000
Fair value of derivative liability				$ 11,000,000
Securities Purchase Agreement [Member]
Debt And Capital Leases [Line Items]
Common stock, shares, issued		1,000,000		1,000,000
Common stock, shares, issued price		$ 10.00
Proceeds from sale of common stock		$ 10,000,000
Minimum [Member] | Amended and Restated ABL Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Percentage of unused fee payment		50.00%
Percentage of letter of credit fee		3.50%
Minimum [Member] | Amended and Restated Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt And Capital Leases [Line Items]
Debt instrument, basis spread on variable rate		3.50%
Minimum [Member] | Amended and Restated Credit Facility [Member] | Base Rate [Member]
Debt And Capital Leases [Line Items]
Debt instrument, basis spread on variable rate		2.50%
Maximum [Member] | Amended and Restated ABL Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Percentage of unused fee payment		50.00%
Percentage of letter of credit fee		4.00%
Maximum [Member] | Amended and Restated Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt And Capital Leases [Line Items]
Debt instrument, basis spread on variable rate		4.00%
Maximum [Member] | Amended and Restated Credit Facility [Member] | Base Rate [Member]
Debt And Capital Leases [Line Items]
Debt instrument, basis spread on variable rate		3.00%
Term Loans and Commitments under Term Loan Credit Agreement [Member] | Minimum [Member] | Board Rights Agreement
Debt And Capital Leases [Line Items]
Percentage of original principal amount		50.00%
Convertible Notes [Member]
Debt And Capital Leases [Line Items]
Proceeds from issuance of debt			$ 25,000,000
Debt instrument interest rate		5.00%		5.00%
Debt instrument, aggregate principal amount		$ 25,000,000		$ 1,000
Debt instrument, maturity date		May 28, 2026		May 28, 2026
Initial conversion rate, number of shares of common stock per each principal amount of Convertible Notes				100
Initial conversion price per share of common stock				$ 10.00
Convertible notes, terms of conversion features				The Buyers will have the right to elect at any time to convert the Convertible Notes into shares of Common Stock at an initial conversion rate equal to 100 shares of Common Stock per each $1,000 principal amount of the Convertible Notes (based on an initial conversion price equal to $10.00 per share of Common Stock). The conversion rate and conversion price will be subject to certain customary anti-dilution adjustments. If the closing price of the Common Stock equals or exceeds $14.50 (subject to adjustment in the same manner as the conversion price) for 45 trading days within any period of 60 consecutive trading days, the Company will have the right to cause the mandatory conversion of the Convertible Notes into shares of Common Stock.In the event of certain fundamental transactions, the Buyers will have the right, within a period of 30 days following the occurrence of such transaction (“Holder Fundamental Transaction Election Period”), to elect to either require prepayment of the Convertible Notes at par plus accrued and unpaid interest or convert all or a portion of the Convertible Notes into shares of Common Stock at the conversion rate then in effect plus any additional shares based on the price per share of Common Stock in connection with the fundamental transaction, or to receive the shares of a successor entity, if any.
Closing price of Common Stock equals or exceeds				$ 14.50
Holder fundamental transaction election period				30 days
Carrying value of stock at issuance				$ 13,000,000
Fair value of derivative liability				12,000,000
Estimated fair value of the convertible notes				$ 24,000,000
Convertible Notes [Member] | Minimum [Member]
Debt And Capital Leases [Line Items]
Trading days				45 days
Convertible Notes [Member] | Maximum [Member]
Debt And Capital Leases [Line Items]
Trading days				60 days
Term Loan Credit Agreement
Debt And Capital Leases [Line Items]
Long-term debt		$ 225,000,000
Long-term debt, maximum additional withdrawal		50,000,000
Proceeds from issuance of debt		215,000,000
Long term debt aggregate principal amount		225,000,000
Debt transaction costs		$ 10,000,000
Long-term debt, term		5 years
Debt instrument interest rate		12.50%
Term Loan Credit Agreement | Term Loan [Member] | Paid-In-Cash Interest [Member]
Debt And Capital Leases [Line Items]
Debt instrument interest rate		8.50%
Term Loan Credit Agreement | Term Loan [Member] | Paid-In-Kind Interest [Member]
Debt And Capital Leases [Line Items]
Debt instrument interest rate		4.00%
Term Loan Credit Agreement | U.S. [Member] | Subsidiaries [Member]
Debt And Capital Leases [Line Items]
Percentage of material stock		100.00%
Term Loan Credit Agreement | Foreign [Member] | Subsidiaries [Member]
Debt And Capital Leases [Line Items]
Percentage of material stock		65.00%