Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities
Net income (loss)	$ (4,865)	$ 611
Less: Net loss from discontinued operations	(15)	(18)
Net income (loss) from continuing operations	(4,850)	629
Adjustments to reconcile net income (loss) from continuing operations to net cash provided by (used in) operating activities:
Right-of-use asset non-cash expense	538	7
Deferred income taxes	19	(170)
Depreciation of property and equipment	159	232
Stock-based compensation	848	794
Amortization of intangible assets	822	803
Loss on disposal of equipment	0	7
Changes in operating assets and liabilities, net of effects of discontinued operation and acquisition:
Trade accounts receivable	734	(3,806)
Unbilled accounts receivable and deferred revenue	212	1,025
Inventories	(5,346)	(115)
Prepaid expenses and other assets	(1,330)	(185)
Trade accounts payable and accrued expenses	1,137	2,055
Operating lease liabilities	(189)	(52)
Net cash provided by (used in) operating activities - continuing operations	(7,246)	1,224
Net cash used in operating activities - discontinued operations	(98)	(100)
Net cash provided by (used in) operating activities	(7,344)	1,124
Cash flows from investing activities
Purchases of property and equipment	(188)	(67)
Maturities of investments	0	3,100
Capitalized software development costs	(333)	(1,076)
Net cash provided by (used in) investing activities - continuing operations	(521)	1,957
Net cash provided by investing activities - discontinued operations	0	1,450
Net cash provided by (used in) investing activities	(521)	3,407
Cash flows from financing activities
Proceeds from stock option exercises	1	1,375
Tax withholding payments for net share settlements of restricted stock units	24	0
Repurchases of common stock	(884)	0
Net cash provided by (used in) financing activities	(859)	1,375
Increase (decrease) in cash, cash equivalents and restricted cash	(8,724)	5,906
Cash, cash equivalents and restricted cash at beginning of period	23,809	25,468
Cash, cash equivalents and restricted cash at end of period	15,085	31,374
Supplemental cash flow information:
Income taxes	0	1
Supplemental schedule of non-cash investing and financing activities:
Deferred payment of purchase price receivable	0	50
Lease liabilities arising from obtaining right-of-use assets	$ 106	$ 0