Stock-Based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
Stock-Based Compensation (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 31, 2017
Stock-based compensation expense
Allocated Share-based Compensation Expense	$ 1,271	$ 1,594
Income tax expense	0	0
Total stock-based compensation expense after taxes	1,271	1,594
Cost of Revenue [Member]
Stock-based compensation expense
Allocated Share-based Compensation Expense	30	34
Selling and Marketing Expense [Member]
Stock-based compensation expense
Allocated Share-based Compensation Expense	272	482
Research and Development Expense [Member]
Stock-based compensation expense
Allocated Share-based Compensation Expense	167	163
General and Administrative Expense [Member]
Stock-based compensation expense
Allocated Share-based Compensation Expense	$ 802	$ 915