Note 7 - Debt and Finance Leases (Details Textual) | May 24, 2019USD ($) | May 20, 2019USD ($)$ / sharesshares | Apr. 12, 2019USD ($) | Apr. 09, 2019d | Nov. 15, 2016USD ($) | Jan. 31, 2019USD ($) | Mar. 31, 2018Subsidiary | Sep. 30, 2019USD ($)$ / sharesshares | Sep. 30, 2018USD ($) | Sep. 30, 2019USD ($)d$ / sharesshares | Sep. 30, 2018USD ($) | Dec. 31, 2018USD ($)$ / sharesshares |
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. 1, 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 | | |