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Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Other Liabilities Disclosure [Abstract] |  |
Accrued compensation costs | $ 592 | $ 411
Accrued professional fees | 359 | 236
Accrued taxes and regulatory fees | 172 | 137
Customer deposits | 136 | 127
Other accrued expenses and liabilities | 161 | 286
Accrued dividends on Series A-2 Preferred Stock | 0 | 4
Accrued expenses and other current liabilities | $ 1,420 | $ 1,201

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