Quarterly report pursuant to Section 13 or 15(d)

REVENUE RECOGNITION (Details)

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REVENUE RECOGNITION (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Total revenues $ 46,945 $ 42,048 $ 84,509 $ 87,983
Product Sales [Member]        
Total revenues 42,500 33,874 74,146 71,655
Nonrecurring Engineering [Member]        
Total revenues 4,833 1,156 6,958
Product Maintenance Contracts [Member]        
Total revenues 911 1,463 1,809 4,626
Professional Service Contracts [Member]        
Total revenues 2,003 959 3,937 2,863
Software Licenses [Member]        
Total revenues 1,162 745 2,546 1,348
Other [Member]        
Total revenues $ 369 $ 174 $ 915 $ 533