Intangible Assets (Tables)

9 Months Ended

Dec. 31, 2017

Intangible assets consisted of the following as of December 31, 2017 and March 31, 2017 (in thousands):


	December 31, 2017
	Weighted
	Average	Intangible
	Amortization	Assets,		Accumulated		Intangible
	Period	Gross		Amortization		Assets, Net
Manufacturing license	17 years	$	3,700	$	3,700	$	—
Technology	10 years		2,240		1,773		467
Trade name & parts, service and TA100 customer relationships	1.2 to 5 years		1,766		1,766		—
Total		$	7,706	$	7,239	$	467


	March 31, 2017
	Weighted
	Average	Intangible
	Amortization	Assets,		Accumulated		Intangible
	Period	Gross		Amortization		Assets, Net
Manufacturing license	17 years	$	3,700	$	3,684	$	16
Technology	10 years		2,240		1,605		635
Trade name & parts, service and TA100 customer relationships	1.2 to 5 years		1,766		1,766		—
Total		$	7,706	$	7,055	$	651

Expected future amortization expense of intangible assets as of December 31, 2017 is as follows (in thousands):


	Amortization
Year Ending March 31,	Expense
2018 (remainder of fiscal year)		56
2019		224
2020		187
Thereafter		—
Total expected future amortization	$	467