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Revenue (Details 1)
$ in Thousands
3 Months Ended
Jun. 30, 2020
USD ($)
Revenue from Contract with Customer [Abstract]  
Balance as of March 31, 2020 $ 949
Revenue recognized that was included in the contract liability at beginning of period (689)
Increase due to cash received, excluding amounts recognized as revenue during the period 851
Balance as of June 30, 2020 $ 1,111