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v3.21.2

Note 6 - Indebtedness (Details Textual) $ / shares in Units, $ in Thousands |  |  |  | 3 Months Ended | 6 Months Ended | 7 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 18, 2021 USD ($) | Mar. 05, 2021 USD ($) | Aug. 12, 2019 USD ($) $ / shares | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) | Apr. 30, 2021 | Mar. 31, 2021 USD ($)
Senior Secured Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Term (Year) |  | 4 years |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Maximum Total Leverage Ratio for the First Four Testing Dates |  | 5.50 |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Maximum Total Leverage Ratio for the Sixth, Seventh, and Eighth Testing Dates |  | 5.0 |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Maximum Total Leverage Ratio Following the Eighth Testing date |  | 4.5 |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Maximum Conditional Total Leverage Ratio Following an Acquisition |  | 5.75 |  |  |  |  |  |  |  |
Long-term Line of Credit, Total |  |  |  | $ 0 |  | $ 0 |  | $ 0 |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  |  |  |  |  |  | 0.15% |  |
Line of Credit Facility, Commitment Fee Amount |  |  |  | 28 | $ 0 | 57 | $ 0 |  |  |
Senior Secured Credit Agreement [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Proceeds from Lines of Credit, Total | $ 70,000 |  |  |  |  |  |  |  |  |
Senior Secured Credit Agreement [Member] | Prepaid Expenses, Other and Other Assets [Member] |  |  |  |  |  |  |  |  |  |
Debt Issuance Costs, Net, Total |  |  |  | $ 567 |  | $ 567 |  | $ 567 |  | $ 650
Senior Secured Credit Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  | 0.35% |  |  |  |  |  |  |  |
Senior Secured Credit Agreement [Member] | Maximum [Member] | The Credit Facility Term Loan [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 75,000 |  |  |  |  |  |  |  |
Senior Secured Credit Agreement [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |
Fixed Charge Coverage Ratio |  | 1.25 |  |  |  |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  | 0.15% |  |  |  |  |  |  |  |
Senior Secured Credit Agreement [Member] | Minimum [Member] | The Credit Facility Term Loan [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 25,000 |  |  |  |  |  |  |  |
Senior Secured Credit Agreement [Member] | Swingline Loan [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 5,000 |  |  |  |  |  |  |  |
Senior Secured Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 75,000 |  |  |  |  |  |  |  |
Senior Secured Credit Agreement [Member] | Letter of Credit [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 2,500 |  |  |  |  |  |  |  |
The Notes [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 1.375% | 1.375% | 1.375% | 1.375% | 1.375% |  |
The Notes [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Term (Year) |  |  | 6 years |  |  |  |  |  |  |
Debt Issuance Costs, Net, Total |  |  |  | $ 3,583 |  | $ 3,583 |  | $ 3,583 |  | $ 3,328
Debt Instrument, Face Amount |  |  | $ 172,500 |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 1.375% |  |  |  |  |  |  | 1.375%
Debt Instrument, Convertible, Conversion Ratio Per 1,000 Principal |  |  | 3.5273 |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares |  |  | $ 283.50 |  |  |  |  |  |  |
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger |  |  | 130.00% |  |  |  |  |  |  |
Debt Instrument, Convertible, Threshold Trading Days |  |  | 20 |  |  |  |  |  |  |
Debt Instrument, Convertible, Threshold Consecutive Trading Days |  |  | 30 |  |  |  |  |  |  |
Debt Instrument, Convertible, Consecutive Trading Days, Trading Price Per 1,000 Principal of Notes Less Than 98% of the Product |  |  | 10 |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount and Commissions Including Equity Component |  |  | $ 5,175 |  |  |  |  |  |  |
Third Party Offering Costs |  |  | $ 255 |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  |  | 1.90% |  | 1.90% |  | 1.90% | 5.50% |

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