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Accrued Expenses and Other Current Liabilities
 12 Months Ended
Dec. 31, 2021
Payables and Accruals [Abstract]  
Accrued Expenses and Other Current Liabilities Accrued Expenses and Other Current Liabilities
Accrued expenses and other current liabilities consisted of the following (in thousands):
December 31,
20212020
Compensation costs$551 $411 
Taxes and regulatory fees92 137 
Customer deposits145 127 
Professional fees69 236 
Accrued dividends on Series A-2 Preferred Stock— 4 
Other accrued expenses and liabilities102 286 
$959 $1,201