Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities
Net loss	$ (7,816)	$ (3,526)	$ (4,826)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Deferred income taxes	(18)	(660)	12
Depreciation of property and equipment	854	819	729
Stock-based compensation	2,156	1,781	976
Amortization of intangible assets	1,125	726	623
Gain on sale of discontinued operation, net of tax		(242)	(361)
Loss on disposal of equipment		16	14
Loss on impairment of goodwill			2,168
Changes in operating assets and liabilities, net of effects of discontinued operation:
Accounts receivable	(4,063)	1,433	(1,058)
Unbilled accounts receivable and deferred revenue, net	457	(166)	549
Inventories	5	(671)	903
Prepaid expenses and other assets	902	(693)	(408)
Accounts payable and accrued expenses	570	915	3,582
Net cash (used in) provided by operating activities	(5,828)	(268)	2,903
Cash flows from investing activities
Purchases of property and equipment	(486)	(1,079)	(668)
Purchase of short term investments	(4,079)	(5,319)
Maturities of investments	7,463
Capitalized software development costs	(660)	(2,936)	(1,170)
Net proceeds from sale of business segment	107	511	495
Net cash (used in) provided by investing activities	2,345	(8,823)	(1,343)
Cash flows from financing activities
Proceeds from stock option exercises	85	1,190	668
Proceeds from ESPP purchases	365
Tax withholding payments for net share settlements of restricted stock units	(48)	(148)	(56)
Net cash provided by financing activities	402	1,042	612
(Decrease) increase in cash and cash equivalents	(3,081)	(8,049)	2,172
Cash and cash equivalents at beginning of period	10,152	18,201	16,029
Cash and cash equivalents at end of period	7,071	10,152	18,201
Supplemental cash flow information:
Interest			14
Income taxes	4	130	166
Supplemental schedule of non-cash investing and financing activities:
Capitalized software development costs included in accounts payable and accrued expenses		102
Issuance of common stock for vested restricted stock units	$ 6	10	$ 5
Landlord contribution for tenant improvements		$ 145