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Summary of Significant Accounting Policies (Details 1) - USD ($) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Summary of Significant Accounting Policies |  |
Beginning balance | $ 268,000 | $ 65,000
Bad debt provision | 71,000 | 203,000
Accounts written-off | 111,000 | 0
Recoveries | (95,000) | 0
Ending balance | $ 355,000 | $ 268,000

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