| Summary of quarterly financial data |
The following financial data is a summary of the quarterly results of operations (unaudited) during and for the years ended November 30, 2017 and 2016:
| | | | | | | | | | | | | | | | | | | | Three Months Ended | Fiscal 2017 | | Feb. 29 | | May 31 | | Aug. 31 | | Nov. 30 | Net Sales | | $4,265,078 | | $6,111,836 | | $5,329,753 | | $4,106,595 | Total Revenue | | 4,269,151 |
| | 6,115,910 |
| | 5,334,368 |
| | 4,110,669 |
| Cost of Sales | | 1,707,854 |
| | 2,345,980 |
| | 1,989,572 |
| | 1,404,370 |
| Gross Profit | | 2,557,224 |
| | 3,765,856 |
| | 3,340,181 |
| | 2,702,225 |
| Income from Continued Operations | | 186,752 |
| | 698,550 |
| | 377,683 |
| | 568,196 |
| (Loss) Income from Discontinued Operations | | — |
| | — |
| | — |
| | — |
| Net Income | | 186,752 |
| | 698,550 |
| | 377,683 |
| | 568,196 |
| Earnings Per Share: | | | | | | | | | Basic | | | | | | | | | Continuing Operations | | $ | 0.03 |
| | $ | 0.10 |
| | $ | 0.05 |
| | $ | 0.08 |
| Discontinued Operations | | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| Total earnings per share | | $ | 0.03 |
| | $ | 0.10 |
| | $ | 0.05 |
| | $ | 0.08 |
| Diluted | | | | | | | | | Continuing Operations | | $ | 0.03 |
| | $ | 0.10 |
| | $ | 0.05 |
| | $ | 0.08 |
| Discontinued Operations | | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| Total earnings per share | | $ | 0.03 |
| | $ | 0.10 |
| | $ | 0.05 |
| | $ | 0.08 |
|
| | | | | | | | | | | | | | | | | | | | | Three Months Ended | | Fiscal 2016 | | Feb. 28 | | May 31 | | Aug. 31 | | Nov. 30 | | Net Sales | | $4,680,272 | | $5,675,177 | | $5,036,658 | | $4,218,127 | | Total Revenue | | 4,684,444 |
| | 5,679,751 |
| | 5,041,193 |
| | 4,223,356 |
| | Cost of Sales | | 1,814,794 |
| | 2,122,059 |
| | 2,309,056 |
| | 1,912,190 |
| | Gross Profit | | 2,865,478 |
| | 3,553,118 |
| | 2,727,602 |
| | 2,305,937 |
| | Income from Continued Operations | | 208,940 |
| | 430,989 |
| | 321,367 |
| | 231,388 |
| | (Loss) Income from Discontinued Operations | | (5,571 | ) | | (7,312 | ) | | — |
| | 1,409 |
| | Net Income | | 203,369 |
| | 423,677 |
| | 321,367 |
| | 232,797 |
| | Earnings Per Share: | | | | | | | | | | Basic | | | | | | | | | | Continuing Operations | | $ | 0.03 |
| | $ | 0.06 |
| | $ | 0.05 |
| | $ | 0.03 |
| | Discontinued Operations | | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | Total earnings per share | | $ | 0.03 |
| | $ | 0.06 |
| | $ | 0.05 |
| | $ | 0.03 |
| | Diluted | | | | | | | | | | Continuing Operations | | $ | 0.03 |
| | $ | 0.06 |
| | $ | 0.05 |
| | $ | 0.03 |
| | Discontinued Operations | | $ | — |
| | $ | — |
| | $ | — |
| | $ | — |
| | Total earnings per share | | $ | 0.03 |
| | $ | 0.06 |
| | $ | 0.05 |
| | $ | 0.03 |
| * |
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