Note 12 - Leasing Arrangements (Details Textual) - USD ($) |
9 Months Ended | ||
|---|---|---|---|
Nov. 30, 2021 |
Nov. 30, 2020 |
Aug. 31, 2021 |
|
| Operating Lease, Expense | $ 582,344 | $ 630,871 | |
| Operating Lease, Weighted Average Discount Rate, Percent | 3.10% | ||
| Lessee, Operating Lease, Liability, to be Paid, Total | $ 2,086,981 | ||
| Operating Lease, Liability, Total | 1,901,558 | ||
| Company-owned Location [Member] | |||
| Lessee, Operating Lease, Liability, to be Paid, Total | 504,946 | ||
| Operating Lease, Liability, Total | $ 475,908 | ||
| Maximum [Member] | |||
| Lessee, Operating Lease, Term of Contract (Year) | 10 years | ||
| Lessee, Operating Lease, Renewal Term (Year) | 10 years | ||
| Minimum [Member] | |||
| Lessee, Operating Lease, Renewal Term (Year) | 5 years | ||