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Eligible cash.

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Excess availability below which the fixed charge coverage ratios triggered.

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Excess availability calculation percentage of eligible equipment.

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Transaction costs.

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Face amount or stated value per share of common stock.

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Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

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Expiration, mandatory redemption, or due date, in CCYY-MM-DD format, of the financial instrument issued in exchange for the original debt being converted in a noncash or part noncash transaction.

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Date the financial instrument was issued in exchange for the original debt being converted in a noncash or part noncash transaction, in CCYY-MM-DD format.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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Note 8 - Debt and Finance Leases (Details Textual)							1 Months Ended	9 Months Ended
Note 8 - Debt and Finance Leases (Details Textual)	Aug. 03, 2020 USD ($)	Jul. 29, 2020 USD ($) d $ / shares shares	Mar. 27, 2020 USD ($)	Mar. 26, 2020	May 24, 2019 USD ($)	May 20, 2019 USD ($) $ / shares	Sep. 30, 2020 USD ($) $ / shares shares	Sep. 30, 2020 USD ($) $ / shares	Sep. 30, 2019 USD ($)	Mar. 31, 2020 USD ($)	Jan. 27, 2020 USD ($)	Jan. 26, 2020 USD ($)	Dec. 31, 2019 USD ($) $ / 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
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								$ 120,000,000	$ 150,000,000
Lender commitments, threshold trigger, excess availability amount			13,750,000				$ 13,750,000	$ 13,750,000			$ 15,000,000	$ 18,750,000	$ 18,750,000
Excess availability and equipment availability combined with increases in available accounts receivable and inventory allowed to decrease eligible cash			$ 13,000,000
Excess availability percentage of lender commitments threshold triggering cash dominion control							12.50%	12.50%					12.50%
Long-term line of credit							$ 87,000,000	$ 87,000,000					$ 80,000,000
Excess availability below which fixed charge coverage ratio is triggered							12.50%	12.50%
Excess availability amount							$ 20,000,000	$ 20,000,000					22,000,000
ABL Credit Agreement [Member] \| Restricted Cash [Member]
Debt And Capital Leases [Line Items]
Eligible cash							21,000,000	21,000,000					$ 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				13,750,000	13,750,000		$ 14,750,000
Decrease in excess availability net orderly liquidation equipment amount							1,000,000	$ 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]
Prepayment of principal amount					$ 83,000,000
5.00% Secured Convertible Notes Due 2021 [Member]
Debt And Capital Leases [Line Items]
Secured convertible notes		$ 95,000,000				$ 100,000,000	5,000,000	$ 5,000,000
Secured convertible notes, interest rate						5.00%
Secured convertible notes, due						2021
Common stock, par value \| $ / shares		$ 0.01
Debt instrument, maturity date								Nov. 01, 2021
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
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
5.00% Secured 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]
Secured convertible notes							$ 5,000,000	$ 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