Intangible Assets (Tables)

12 Months Ended

Mar. 31, 2019

Intangible assets consisted of the following (in thousands):


	March 31, 2019
	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		2,053		187
Trade name & parts, service and TA100 customer relationships	1.2 to 5 years		1,766		1,766		—
Total		$	7,706	$	7,519	$	187


	March 31, 2018
	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		1,829		411
Trade name & parts, service and TA100 customer relationships	1.2 to 5 years		1,766		1,766		—
Total		$	7,706	$	7,295	$	411

Expected future amortization expense of intangible assets as of March 31, 2019 is as follows (in thousands):


	Amortization
Year Ending March 31,	Expense
2020	$	187
Total expected future amortization	$	187