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Restricted Stock, Stock Options and Other Stock Plans (Tables)
 6 Months Ended
Jun. 30, 2020
Share-based Payment Arrangement [Abstract]  
Summary of Consolidated Balance Sheets and Statements of Operations Line Items for Stock-Based Compensation The following table reflects the statements of operations line items for stock-based compensation for the periods presented:
Three Months Ended June 30,Six Months Ended June 30,
2020201920202019
Cost of sales - Real Estate Services
$—  $27  $—  $38  
Expense - General and administrative
204  95  417  168  
$204  $122  $417  $206