Note 7 - Debt and Finance Leases (Details Textual)						1 Months Ended		3 Months Ended		9 Months Ended
	May 24, 2019 USD ($)	May 20, 2019 USD ($) $ / shares shares	Apr. 12, 2019 USD ($)	Apr. 09, 2019 d	Nov. 15, 2016 USD ($)	Jan. 31, 2019 USD ($)	Mar. 31, 2018 Subsidiary	Sep. 30, 2019 USD ($) $ / shares shares	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) d $ / shares shares	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($) $ / shares shares
Debt And Capital Leases [Line Items]
Common stock, par value | $ / shares		$ 0.01						$ 0.01		$ 0.01		$ 0.01
Proceeds from borrowings										$ 14,000,000
Fair value of derivative liability								$ 18,000,000		$ 18,000,000
Stock outstanding percentage										11.51%
Number of subsidiaries designated as unrestricted subsidiaries | Subsidiary							5
Total sales								$ 315,000,000	$ 329,000,000	$ 913,000,000	$ 979,000,000
Percentage of aggregate sales of unrestricted subsidiaries to consolidated sales of entity								1.00%	1.00%	1.00%	1.00%
Aggregate assets of designated subsidiaries								$ 1,409,000,000		$ 1,409,000,000		$ 1,510,000,000
Percentage of aggregate assets of unrestricted subsidiaries to consolidated assets of entity								1.00%		1.00%		1.00%
Unrestricted Subsidiaries [Member]
Debt And Capital Leases [Line Items]
Total sales								$ 2,000,000	$ 3,000,000	$ 9,000,000	$ 8,000,000
Aggregate assets of designated subsidiaries								20,000,000		20,000,000		$ 21,000,000
ABL Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Line of credit facility, maximum borrowing capacity								150,000,000		150,000,000
Long-term line of credit								80,000,000		80,000,000		85,000,000
Excess availability amount								$ 20,000,000		$ 20,000,000		19,000,000
Fixed charged coverage ratio required								0.0100		0.0100
Excess availability below which the fixed charge coverage ratio is triggered								12.50%		12.50%
Lender commitments, threshold trigger, excess availability amount								$ 18,750,000		$ 18,750,000		$ 18,750,000
Excess availability percentage of lender commitments threshold triggering cash dominion control								12.50%		12.50%		12.50%
ABL Credit Agreement [Member] | Restricted Cash [Member]
Debt And Capital Leases [Line Items]
Eligible cash								$ 14,000,000		$ 14,000,000		$ 3,000,000
ABL Credit Agreement [Member] | Minimum [Member]
Debt And Capital Leases [Line Items]
Proforma fixed charge coverage ratio										1.00%
ABL Credit Agreement [Member] | Minimum [Member] | Pro Forma [Member]
Debt And Capital Leases [Line Items]
Excess availability amount								$ 30,000,000		$ 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%
Amended Credit Facility [Member]
Debt And Capital Leases [Line Items]
Excess availability, calculation, percentage of eligible receivables less a dilution reserve								85.00%		85.00%
Excess availability, calculation, percentage of net orderly liquidation value								85.00%		85.00%
Excess availability, calculation, percentage of eligible inventory								75.00%		75.00%
Excess availability, net orderly liquidation equipment amount								$ 8,000,000		$ 8,000,000
Excess availability, calculation, percentage of eligible equipment								75.00%		75.00%
Decrease in excess availability net orderly liquidation equipment amount								$ 1,000,000		$ 1,000,000
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										2.25%
Amended Credit Facility [Member] | Minimum [Member] | Base Rate [Member]
Debt And Capital Leases [Line Items]
Debt instrument, basis spread on variable rate										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										2.75%
Amended Credit Facility [Member] | Maximum [Member] | Base Rate [Member]
Debt And Capital Leases [Line Items]
Debt instrument, basis spread on variable rate										1.75%
Common Stock [Member]
Debt And Capital Leases [Line Items]
Secured convertible notes								$ 1,000		$ 1,000
Conversion of notes, shares issued										314.9785
Conversion of notes, price per share | $ / shares								$ 3.17482		$ 3.17482
Conversion of notes, convertible percentage in excess of premium								10.00%		10.00%
Debt instrument convertible trading days | d				5						45
Debt instrument, convertible, threshold percentage of stock price trigger										150.00%
Debt Instrument convertible consecutive trading days | d										60
Conversion of notes, description										If the closing price of the Common Stock equals or exceeds 150% of the then-effective Conversion Price for 45 trading days within any period of 60 consecutive trading days, with the last trading day of such 60 day period ending on the trading day immediately preceding the business day on which the Company issues a press release announcing the mandatory conversion, the Company may elect to convert all outstanding Convertible Notes into shares of Common Stock at the Conversion Rate then in effect.
Holder fundamental transaction election period										30 days
Common Stock [Member] | Beneficial Owner [Member]
Debt And Capital Leases [Line Items]
Shares outstanding | shares		4,960,000
Convertible Notes [Member]
Debt And Capital Leases [Line Items]
Debt instrument, maturity date, description										The maturity date of the Convertible Notes is initially November 1, 2021. The Company has the option to extend the maturity of the Convertible Notes by up to three years in the event that the Series A Preferred Stock is refinanced with debt or equity or the mandatory redemption date of the Series A Preferred Stock is extended. If the Convertible Notes maturity date is extended, the new maturity date must be no later than 30 days before the maturity date of any new debt or the extended mandatory redemption date of the Series A Preferred Stock.
Debt instrument, maturity date										Nov. 01, 2021
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
Assumed stock outstanding percentage after conversion of debt										42.24%
Convertible Notes [Member] | Common Stock [Member]
Debt And Capital Leases [Line Items]
Conversion of notes, shares issuable upon conversion of debt | shares										31,497,850
5.50% Series A Convertible Preferred Stock [Member]
Debt And Capital Leases [Line Items]
Preferred stock, dividend rate, percentage		5.50%
Series A Preferred Stock [Member]
Debt And Capital Leases [Line Items]
Net proceeds received to derivative liability					$ 43,000,000
Transaction costs					$ 2,000,000
Preferred stock outstanding | shares								2,000,000		2,000,000		2,000,000
Assumed stock outstanding percentage after conversion of debt										26.68%
Series A Preferred Stock [Member] | Common Stock [Member]
Debt And Capital Leases [Line Items]
Voting power percentage after conversion of debt										30.15%
Series A Preferred Stock [Member] | Convertible Notes [Member]
Debt And Capital Leases [Line Items]
Voting power percentage after conversion of debt										55.71%
Series A Preferred Stock [Member] | Convertible Notes [Member] | Beneficial Owner [Member]
Debt And Capital Leases [Line Items]
Assumed stock outstanding percentage after conversion of debt										48.89%
5.00% Secured Convertible Notes Due 2021 [Member]
Debt And Capital Leases [Line Items]
Secured convertible notes		$ 100,000,000
Secured convertible notes, interest rate		5.00%
Secured convertible notes, due		2021
Term Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Repayment of principal amount	$ 83,000,000		$ 312,000,000
Prepayment of principal amount		$ 83,000,000
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
Debt amount under the agreement						$ 14,000,000
Debt Instrument Maturity Month and Year										2033-08