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Net Loss per Common Share (Tables)
3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Schedule of reconciliation of basic and diluted weighted average common shares outstanding
A reconciliation of the basic and diluted weighted average common shares outstanding is as follows:
 
Three Months Ended
 March 31,
 20212020
Weighted average common shares outstanding—basic17,938 17,529 
Dilutive common shares issuable in connection with stock plans— — 
Weighted average common shares outstanding—diluted17,938 17,529