Annual report pursuant to Section 13 and 15(d)

EARNINGS PER SHARE (Details)

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EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Net income (loss) attributable to parent                 $ (3,593) $ 13,922 $ (28,161)
Less: Net income attributable to participating securities                 0 307 0
Net income (loss) attributable to common shares                 $ (3,593) $ 13,615 $ (28,161)
Shares:                      
Weighted average number of common shares outstanding—basic (in shares)                 21,009,362 21,167,550 20,760,530
Weighted average number of common shares outstanding—diluted (in shares)                 21,010,715 21,180,490 20,760,530
Earnings (loss) per common share:                      
Basic (in usd per share) $ (0.03) $ (0.09) $ 0.22 $ (0.28) $ (0.27) $ 1.44 $ (0.49) $ (0.06) $ (0.17) $ 0.64 $ (1.36)
Diluted (in usd per share) $ (0.03) $ (0.09) $ 0.22 $ (0.28) $ (0.27) $ 1.44 $ (0.49) $ (0.06) $ (0.17) $ 0.64 $ (1.36)
Stock Options and Restricted Stock                      
Shares:                      
Net effect of dilutive stock options and restricted stock awards based on the treasury stock method (in shares)                 1,353 12,940 0
Earnings (loss) per common share:                      
Antidilutive securities excluded from computation of earnings per share (in shares)                 204,965 218,844 273,255