Inventory

As the Company’s primary focus changes from the MMS-1000™ to the TRACER 1000, the majority of the inventory associated with the MMS-1000™ was written-off during the second quarter of fiscal 2018. The following table summarizes the components of our inventory balances, net of allowance of $9 thousand and $116 thousand at December 31, 2017, and June 30, 2017, respectively:



(In thousands)	December 31, 2017		June 30, 2017
Raw materials	$	10	$	109
Work in process	—		57
Total inventory	$	10	$	166