Note 6 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($) |
9 Months Ended | |
|---|---|---|
Nov. 30, 2016 |
Nov. 30, 2015 |
|
| Interest | $ 100,275 | $ 128,881 |
| Income taxes | 1,655,774 | 997,914 |
| Accrued Inventory | 202,669 | 497,190 |
| Dividend Payable | 702,525 | 700,728 |
| Notes receivable | 145,585 | 264,433 |
| Sale of Long Lived Assets [Member] | ||
| Notes receivable | 20,989 | 127,500 |
| Sale of Other Assets [Member] | ||
| Notes receivable | $ 75,000 | |