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SHAREHOLDERS' EQUITY (Schedule Of Equity-Based Compensation Expense) (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Total share-based compensation expense $ 1,172 $ 1,032
Cost of Revenue [Member]    
Total share-based compensation expense 31 18
Research And Development Expense [Member]    
Total share-based compensation expense 201 127
Selling And Marketing Expense [Member]    
Total share-based compensation expense 382 286
General And Administrative Expense [Member]    
Total share-based compensation expense $ 558 $ 601