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Net Income (Loss) per Common Share (Tables)
6 Months Ended
Jun. 30, 2018
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
 
Six Months Ended
 
June 30,
 
June 30,
 
2018
 
2017
 
2018
 
2017
Weighted average common shares outstanding—basic
17,140

 
16,446

 
16,942

 
16,354

Dilutive common shares issuable in connection with stock plans

 

 

 

Weighted average common shares outstanding—diluted
17,140

 
16,446

 
16,942

 
16,354