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DISPOSED AND DISCONTINUED OPERATIONS - Assets and Liabilities of Discontinued Operations (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
DISPOSED AND DISCONTINUED OPERATIONS    
Inventories $ 23 $ 30
Other current assets 23 30
Deferred income tax assets 269 269
Deposits and other assets 269 269
Accounts payable and other accrued expenses 137  
Accrued warranty 894 914
Other accrued expenses 1,031 914
Accrued warranty 310 698
Other liabilities 215 189
Other long-term liabilities $ 525 $ 887