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Note 7 - Long-term Debt (Details Textual) |  | 2 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 01, 2017 USD ($) | Jun. 04, 2018 USD ($) | Feb. 28, 2022 USD ($)
Debt Issuance Costs, Gross | $ 460,000 |  |
Credit Facility [Member] |  |  |
Debt Instrument Convenant, Maximum Leverage Ration, During the Initial Holiday Period | 3.5 |  |
Debt Instrument Covenant, Maximum Leverage Ratio, Immediately Following the Initial Holiday Period | 3.25 |  |
Debt Instrument Covenant, Fixed Charge Coverage Ratio | 1.25 |  |
Credit Facility [Member] | After March 31, 2016 [Member] |  |  |
Debt Instrument Covenant, Ratio of Funded Debt to Consolidated EBITDA | 3 |  |
Credit Facility [Member] | Term Loan [Member] |  |  |
Long-term Debt, Gross | $ 20,000,000 |  |
Line of Credit Facility, Periodic Payment, Number of Quarterly Payments | 20 |  |
Debt Instrument, Periodic Payment, Principal | $ 250,000 |  |
Line of Credit Facility, Annual Increase (Decrease) in Periodic Payment, Principal | 125,000 |  |
Credit Facility [Member] | Term Loan [Member] | Scenario, Forecast [Member] |  |  |
Debt Instrument, Periodic Payment, Principal |  |  | $ 750,000
Line of Credit [Member] |  |  |
Long-term Debt, Gross | $ 20,000,000 |  |
Line of Credit [Member] | Subsequent Event [Member] |  |  |
Repayments of Long-term Lines of Credit |  | $ 3,000,000 |
Line of Credit [Member] | Debt Instrument, Variable Rate Base CBFR Using One Month LIBOR [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate Used to Calculate Commercial Bank Floating Rate | 0.50% |  |
Line of Credit [Member] | Minimum [Member] |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.15% |  |
Line of Credit [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.50% |  |
Line of Credit [Member] | Maximum [Member] |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.35% |  |
Line of Credit [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.50% |  |
Line of Credit [Member] | Credit Facility [Member] |  |  |
Debt Instrument, Term | 5 years |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 80,000,000 |  |
Line of Credit Facility, Additional Maximum Borrowing Capacity | 100,000,000 |  |
Letter of Credit [Member] | Credit Facility [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 2,500,000 |  |

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- Definition The percentage points added to the reference rate used to calculate commercial bank floating rate (CBFR). + References No definition available. + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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