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Consolidated Statements of Stockholders' Deficit - USD ($) | Total | Common Stock [Member] | Additional Paid-In Capital [Member] | Treasury Stock [Member] | Accumulated Other Comprehensive Income [Member] | Accumulated Deficit [Member]
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Nov. 30, 2017 | $ (12,502,896) | $ 128,995 | $ 31,373,048 | $ (19,571,113) | $ 40,865 | $ (24,474,691)
Beginning balance, shares at Nov. 30, 2017 |  | 12,899,517 |  |  |  |
Common stock issued | 3,670,925 | $ 6,970 | 3,663,955 |  |  |
Common stock issued, shares |  | 696,992 |  |  |  |
Compensatory element of stock options | 323,798 |  | 323,798 |  |  |
Unrealized gain on available for sale securities | 405,255 |  |  |  | 405,255 |
Net income (loss) | (1,745,582) |  |  |  |  | (1,745,582)
Ending balance at Aug. 31, 2018 | (9,848,500) | $ 135,965 | 35,360,801 | (19,571,113) | 446,120 | (26,220,273)
Ending balance, shares at Aug. 31, 2018 |  | 13,596,509 |  |  |  |
Beginning balance at May. 31, 2018 | (14,100,156) | $ 130,695 | 31,644,654 | (19,571,113) | 160,865 | (26,465,257)
Beginning balance, shares at May. 31, 2018 |  | 13,069,483 |  |  |  |
Common stock issued | 3,666,005 | $ 5,270 | 3,660,735 |  |  |
Common stock issued, shares |  | 527,026 |  |  |  |
Compensatory element of stock options | 55,412 |  | 55,412 |  |  |
Unrealized gain on available for sale securities | 285,255 |  |  |  | 285,255 |
Net income (loss) | 244,984 |  |  |  |  | 244,984
Ending balance at Aug. 31, 2018 | (9,848,500) | $ 135,965 | 35,360,801 | (19,571,113) | 446,120 | (26,220,273)
Ending balance, shares at Aug. 31, 2018 |  | 13,596,509 |  |  |  |
Beginning balance at Nov. 30, 2018 | (8,908,298) | $ 135,964 | 35,515,382 | (19,571,113) | 340,984 | (25,329,515)
Beginning balance, shares at Nov. 30, 2018 |  | 13,596,409 |  |  |  |
Common stock issued | 5,700 | $ 25 | 5,675 |  |  |
Common stock issued, shares |  | 2,500 |  |  |  |
Compensatory element of stock options | 239,983 |  | 239,983 |  |  |
Cumulative-effect adjustment due to the adoption of ASU 2016-01 | Accounting Standards Update 2016-01 [Member] |  |  |  |  | $ (340,984) | 340,984
ASC 606 adoption adjustment, net of tax | Accounting Standards Update 2014-09 [Member] | 253,447 |  |  |  |  | 253,447
Net income (loss) | 1,445,809 |  |  |  |  | 1,445,809
Ending balance at Aug. 31, 2019 | (6,963,359) | $ 135,989 | 35,761,040 | (19,571,113) |  | (23,289,275)
Ending balance, shares at Aug. 31, 2019 |  | 13,598,909 |  |  |  |
Beginning balance at May. 31, 2019 | (8,093,792) | $ 135,989 | 35,746,866 | (19,571,113) |  | (24,405,534)
Beginning balance, shares at May. 31, 2019 |  | 13,598,909 |  |  |  |
Compensatory element of stock options | 14,174 |  | 14,174 |  |  |
Net income (loss) | 1,116,259 |  |  |  |  | 1,116,259
Ending balance at Aug. 31, 2019 | $ (6,963,359) | $ 135,989 | $ 35,761,040 | $ (19,571,113) |  | $ (23,289,275)
Ending balance, shares at Aug. 31, 2019 |  | 13,598,909 |  |  |  |

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