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v3.20.1

Consolidated Statements of Comprehensive Income - USD ($) | 3 Months Ended
--- | ---
Feb. 29, 2020 | Feb. 28, 2019
Revenue | $ 7,620,774 | $ 7,495,112
Costs and Expenses: |  |
Cost of sales | 2,503,144 | 2,466,227
Selling, general and administrative expenses | 3,870,029 | 3,745,302
Change in fair value of contingent consideration | (51,412) | 367,057
Research, development and related engineering | 5,722 | 5,884
Depreciation and amortization | 44,221 | 56,980
Total costs and expenses | 6,371,704 | 6,641,450
Operating Income | 1,249,070 | 853,662
Other Expense: |  |
Unrealized gains (losses) on marketable securities | 54,948 | (67,179)
Other income (expense) | 627 | 986
Interest expense | (365,299) | (406,925)
Total other expense | (309,724) | (473,118)
Income before income tax expense | 939,346 | 380,544
Income tax expense | (252,380) | (104,667)
Net Income and Comprehensive Income | $ 686,966 | $ 275,877
Net income per common share—basic | $ 0.09 | $ 0.04
Weighted average common shares outstanding—basic | 7,541,113 | 7,801,333
Net income per common share—diluted | $ 0.08 | $ 0.03
Weighted average common shares outstanding—diluted | 8,128,257 | 8,424,905
Processing and Storage Fees [Member] |  |
Revenue | $ 7,406,288 | $ 7,335,027
Public Banking [Member] |  |
Revenue | 154,079 | 134,365
Product [Member] |  |
Revenue | $ 60,407 | $ 25,720

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