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1. Overview and Summary of Significant Accounting Policies (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Outstanding common stock equivalents | 308,000 | 244,000
Allowance for doubtful accounts on accounts receivables | $ 77,000 | $ 168,000
Advertising and marketing costs | 33,000 | 449,000
Matching expense related to our savings plan | $ 23,000 | $ 0
Buildings |  |
Estimated useful lives of property and equipment | 40 years |
Building Improvements |  |
Estimated useful lives of property and equipment | 15 years |
Computers, Furniture, and Equipment |  |
Estimated useful lives of property and equipment | 5 to 7 years |

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