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v3.21.1

Note 10 - Debt (Details Textual) - USD ($) $ in Thousands |  | 1 Months Ended | 9 Months Ended
--- | --- | --- | ---
Dec. 21, 2018 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Mar. 31, 2021 | Mar. 31, 2020
Proceeds from Long-term Lines of Credit |  |  |  |  | $ 0 | $ 100,000
Revolving Credit Facility [Member] | The Facility [Member] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 165,000 |  |  |  |  |
Debt Issuance Costs, Net, Total | 600 |  |  |  |  |
Proceeds from Long-term Lines of Credit |  |  |  | $ 100,000 |  |
Repayments of Long-term Lines of Credit |  | $ 50,000 | $ 50,000 |  | 50,000 |
Interest Expense, Debt, Total |  |  |  |  | 400 | $ 200
Debt Covenant, Fixed Charge Coverage Ratio, Maximum Unused Availability | $ 18,500 |  |  |  |  |
Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio | 1.0 |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | 58,900 |  | 78,300 |
Revolving Credit Facility [Member] | The Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.00% |  |  |  |  |
Revolving Credit Facility [Member] | The Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.50% |  |  |  |  |
Revolving Credit Facility [Member] | The Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.00% |  |  |  |  |
Revolving Credit Facility [Member] | The Facility [Member] | Fed Funds Effective Rate Overnight Index Swap Rate [Member] |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50% |  |  |  |  |
Revolving Credit Facility [Member] | The Facility [Member] | Additional Margin on Variable Rate Option [Member] | Minimum [Member] |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50% |  |  |  |  |
Revolving Credit Facility [Member] | The Facility [Member] | Additional Margin on Variable Rate Option [Member] | Maximum [Member] |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.00% |  |  |  |  |
Standby Letters of Credit [Member] | The Facility [Member] |  |  |  |  |  |
Letters of Credit Outstanding, Amount |  |  | $ 5,800 |  | $ 5,000 |

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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + 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 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399 + Details
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