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ACCRUED LIABILITIES (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
ACCRUED LIABILITIES    
Warranty liability $ 3,177 $ 3,027
Litigation reserve 495 570
Federal and state taxes payable 3,990 2,252
Accrued expenses & other accrued liabilities 2,943 3,307
Total $ 10,605 $ 9,156