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Subsequent Event	6 Months Ended
Subsequent Event	Jun. 29, 2018
Subsequent Events [Abstract]
Subsequent Event	SUBSEQUENT EVENT On July 31, 2018, pursuant to the vesting provisions of the Warrant, a tranche of 1,172,425 Warrant shares vested and became exercisable upon the acceptance of completion of field trials by Comcast. The fair value of the Warrant on the date of vesting is estimated to be $2.3 million using the Black-Scholes option pricing model. See Note 13, “Warrants” for additional information.