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Revenue Recognition - Schedule of Revenue Disaggregated by Revenue Sources (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Total Revenue $ 35,146 $ 16,884 $ 16,274 $ 13,611 $ 11,491 $ 13,385 $ 14,809 $ 13,379 $ 81,915 $ 53,064 $ 40,958
Products [Member]                      
Total Revenue 16,462 11,062 10,643 7,249 7,171 9,044 10,784 9,898 45,416 36,897 23,552
Services [Member]                      
Total Revenue $ 18,684 $ 5,822 $ 5,631 $ 6,362 $ 4,320 $ 4,341 $ 4,025 $ 3,481 $ 36,499 $ 16,167 $ 17,406