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v3.21.1

Debt (Narrative) (Details) |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 11, 2020 USD ($) | Apr. 30, 2021 USD ($) | Sep. 08, 2020 USD ($) | Feb. 01, 2020 USD ($)
Line of Credit Facility [Line Items] |  |  |  |
Line Of Credit Facility, Borrowing Capacity, Term |  | $ 15,000,000 |  |
Line of credit facility, period for reduced borrowings during fourth quarter of each fiscal year (consecutive days) |  | 30 days |  |
Revolving credit facility bears interest increased |  | 2.00% |  |
Unused portion fee rate |  | 0.375% |  |
Inventory [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Revolving credit facility borrowing base limitation |  | 60.00% |  |
Inventories [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Revolving credit facility borrowing base limitation |  | 85.00% |  |
Maximum [Member] | Accounts receivable [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Revolving credit facility borrowing base limitation |  | 85.00% |  |
Amendment No. 20 To Credit Facility [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Maximum fixed charge coverage ratio |  |  |  | 1.10
Amendment No. 20 To Credit Facility [Member] | Consecutive Four Fiscal Quarters Ending Thereafter |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Maximum fixed charge coverage ratio |  | 1.10 |  |
Amendment No. 20 To Credit Facility [Member] | Maximum [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Maximum capital expenditures |  |  |  | $ 8,000,000
Amendment No. 21 To Credit Facility [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Non-refundable fee |  |  | $ 75,000 |
Amendment No. 21 To Credit Facility [Member] | Consecutive Four Fiscal Quarters Ending July 31, 2020 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Maximum fixed charge coverage ratio |  |  | 1.00 |
Amendment No. 21 To Credit Facility [Member] | Consecutive Four Fiscal Quarters Ending October 31, 2020 |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Maximum fixed charge coverage ratio |  |  | 1.00 |
Amendment No. 21 To Credit Facility [Member] | Consecutive Four Fiscal Quarters Ending Thereafter |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Maximum fixed charge coverage ratio |  | 1.00 | 1.10 |
Amendment No. 22 To Credit Facility [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Non-refundable fee | $ 40,000 |  |  |
Minimum coverage ratio | 1.10 |  |  |
Amendment No. 22 To Credit Facility [Member] | Maximum [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Covenant compliance, adjusted EBITDA | $ 2,000,000 |  |  |
PNC [Member] | Revolving Credit Facility [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Remaining borrowing capacity |  | $ 22,121,000 |  |
PNC [Member] | Revolving Credit Facility [Member] | Amendment No. 19 to Credit Facility [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Line of credit facility, maximum borrowing capacity |  | 65,000,000 |  |
PNC [Member] | Equipment Loan [Member] | Amendment No. 19 to Credit Facility [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Line of credit facility, maximum borrowing capacity |  | 10,000,000 |  |
Line of credit facility, Equipment financing |  | $ 2,000,000 |  |
Eurodollar [Member] | Minimum [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Revolving credit facility bears interest range of |  | 2.25% |  |
Eurodollar [Member] | Maximum [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Revolving credit facility bears interest range of |  | 2.75% |  |
Alternate Base Rate Loans [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Interest rate |  | 5.00% |  |
Alternate Base Rate Loans [Member] | London Interbank Offered Rate LIBOR [Member] | Minimum [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Revolving credit facility bears interest range of |  | 1.25% |  |
Alternate Base Rate Loans [Member] | London Interbank Offered Rate LIBOR [Member] | Maximum [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Revolving credit facility bears interest range of |  | 1.75% |  |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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