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v3.19.1

Debt (Narrative) (Details) |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 01, 2017 USD ($) | Apr. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Apr. 30, 2019 USD ($) | Jul. 31, 2019 USD ($) | Oct. 31, 2019 USD ($) | Jan. 31, 2019 USD ($) | Jan. 31, 2018 USD ($) | Jul. 31, 2018 USD ($) | Apr. 30, 2018 USD ($) | Jul. 01, 2017 USD ($) | Jun. 30, 2017 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility bears interest increased |  |  |  |  |  |  | 2.00% |  |  |  |  |
Interest rate | 4.00% |  |  |  |  |  | 6.25% |  |  |  |  |
Dividends |  |  |  |  |  |  | $ 930,000 | $ 230,000 |  |  |  |
Purchase agreement nonbinding commitment | $ 7,200,000 |  |  |  |  |  |  |  |  |  |  |
Purchase agreement nonbinding commitment down payment | 20.00% |  |  |  |  |  |  |  |  |  |  |
Purchase Agreement, Non-binding Commitment, Seller Financed Portion | $ 5,760,000 |  |  |  |  |  |  |  |  |  |  |
Purchase Agreement, Non-binding Commitment, Financing Period | 20 years |  |  |  |  |  |  |  |  |  |  |
Judgments or judicial actions against the borrowers in excess |  |  |  |  |  |  | $ 250,000 |  |  |  |  |
Accounts receivable [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility borrowing base limitation |  |  |  |  |  |  | 85.00% |  |  |  |  |
Inventory [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility borrowing base limitation |  |  |  |  |  |  | 60.00% |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line Of Credit Facility, Borrowing Capacity, Term |  |  |  |  |  |  | $ 8,000,000 |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line Of Credit Facility, Borrowing Capacity, Term |  |  |  |  |  |  | $ 14,000,000 |  |  |  |  |
Maximum [Member] | Accounts receivable [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility borrowing base limitation |  |  |  |  |  |  | 85.00% |  |  |  |  |
Amendment No. 17 to Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Minimum EBITDA |  |  |  |  |  |  |  |  | $ 6,402,000 | $ (3,767,000) |  |
Revolving credit facility |  |  |  |  |  |  | $ 60,000,000 | $ 50,000,000 |  |  |  |
Dividends | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |
Maximum fixed charge coverage ratio |  |  |  |  |  |  | 1.10 |  |  |  |  |
Non-refundable Extension Fee |  |  |  |  |  |  | $ 250,000 |  |  |  |  |
PNC [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  | 60,000,000 |  |  |  |  |
Line of credit facility, Equipment financing |  |  |  |  |  |  | 2,500,000 |  |  |  |  |
Revolving Advances |  |  |  |  |  |  |  |  |  |  | $ 11,000,000 | $ 14,000,000
Remaining borrowing capacity |  |  |  |  |  |  | 11,231,000 |  |  |  |  |
PNC [Member] | Revolving Credit Facility [Member] | Amendment To Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, Equipment financing |  |  |  |  |  |  | 2,500,000 |  |  |  |  |
PNC [Member] | Letter of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  | $ 3,000,000 |  |  |  |  |
Eurodollar [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility bears interest range of |  |  |  |  |  |  | 1.75% |  |  |  |  |
Eurodollar [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility bears interest range of |  |  |  |  |  |  | 2.25% |  |  |  |  |
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 |  |  |  |  |  |  | 0.75% |  |  |  |  |
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 |  |  |  |  |  |  | 1.25% |  |  |  |  |
Subsequent Event [Member] | Amendment No. 19 to Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Non-refundable Extension Fee |  |  | $ 24,000 |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Amendment No. 20 To Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Minimum EBITDA |  | $ 5,000,000 |  | $ 5,000,000 |  |  |  |  |  |  |  |
Maximum fixed charge coverage ratio |  | 1.10 |  | 1.10 | 2.25 |  |  |  |  |  |  |
Non-refundable Extension Fee |  | $ 125,000 |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Amendment No. 20 To Credit Facility [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Capital Expenditures Limit |  |  |  | $ 900,000 |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Aggregate Debt |  | $ 8,000,000 |  | $ 8,000,000 |  |  |  |  |  |  |  |
Subsequent Event [Member] | 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 |  |  |  |  |  |  |  |  |
Line Of Credit, Clean Down Limit |  |  | 10,000,000 |  |  |  |  |  |  |  |  |
Line Of Credit, Short-Term Borrowings Limit |  |  | 2,000,000 |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | PNC [Member] | Seasonal Advance [Member] | Amendment No. 19 to Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  | 15,000,000 |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | 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 |  |  |  |  |  |  |  |  |
Scenario, Forecast [Member] | Subsequent Event [Member] | Amendment No. 20 To Credit Facility [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Capital Expenditures Limit |  |  |  |  | $ 1,900,000 |  |  |  |  |  |  |
Debt Covenant Term One [Member] | Scenario, Forecast [Member] | Subsequent Event [Member] | Amendment No. 20 To Credit Facility [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Capital Expenditures Limit |  |  |  |  |  | $ 3,900,000 |  |  |  |  |  |
Debt Instrument, Covenant, Capital Expenditure Limit Term On EBITDA |  |  |  |  |  | 8,500,000 |  |  |  |  |  |
Debt Covenant Term Two [Member] | Scenario, Forecast [Member] | Subsequent Event [Member] | Amendment No. 20 To Credit Facility [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Capital Expenditures Limit |  |  |  |  |  | 2,900,000 |  |  |  |  |  |
Debt Instrument, Covenant, Capital Expenditure Limit Term On EBITDA |  |  |  |  |  | $ 8,500,000 |  |  |  |  |  |

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