Deferred Revenue and Income (Tables)

3 Months Ended

Mar. 31, 2017

Deferred Revenue Disclosure [Abstract]

Deferred Revenue and Income Summary

A summary of the balances as of March 31, 2017, and December 31, 2016, follows:

Deferred Revenue and Income
(in thousands)
	March 31,		December 31,
	2017		2016
Products not yet delivered	$	42	$	35
Arizona Commerce Authority grant	1,000		—
Total current deferred revenue and income	$	1,042	$	35
Services not yet delivered	$	22	$	—
Arizona Commerce Authority grant	—		1,000
Total long-term deferred income	$	22	$	1,000