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ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)
 12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Schedule of accumulated other comprehensive income (loss)
Accumulated other comprehensive income consisted of the following (in thousands):
 
Minimum pension liability
 
Foreign currency translation
 
Total accumulated other comprehensive income
Balances at December 31, 2017
$
(489
)
 
$
721

 
$
232

Other comprehensive income
70

 
(25
)
 
45

Balances at December 31, 2018
(419
)
 
696

 
277

Other comprehensive income
73

 
163

 
236

Balances at December 31, 2019
$
(346
)
 
$
859

 
$
513