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SHAREHOLDERS' EQUITY (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Nov. 10, 2017
USD ($)
$ / shares
shares
Sep. 20, 2017
shares
Dec. 31, 2017
USD ($)
$ / shares
shares
Sep. 19, 2017
$ / shares
shares
Sep. 18, 2017
$ / shares
shares
Dec. 31, 2016
$ / shares
shares
Shareholders' Equity            
Preferred stock par value | $ / shares     $ 0.01 $ 0.01   $ 0.01
Common stock par value | $ / shares     $ 0.01 $ 0.01   $ 0.01
Preferred stock shares authorized     10,000,000 10,000,000   10,000,000
Common stock shares authorized     90,000,000 90,000,000   90,000,000
Stock split ratio   2        
Additional shares received   1        
Sale of common stock, offering costs | $     $ 7,241      
Proceeds from stock offering | $ $ 64,500   $ 64,519      
Previously reported            
Shareholders' Equity            
Preferred stock par value | $ / shares         $ 10.00  
Common stock par value | $ / shares         $ 10.00  
Preferred stock shares authorized         1,000,000  
Common stock shares authorized         15,000,000  
Initial public offering            
Shareholders' Equity            
Stock issued (in shares) 2,760,000          
Share price (in dollars per share) | $ / shares $ 26.00