CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Operating activities:
Net income (loss)	$ (1,975)	$ 128
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Stock-based compensation expense	600	636
Depreciation and amortization expense	825	606
Gain on disposal of equipment	(52)	0
Operating lease right-of-use assets	403	0
Deferred rent	0	397
Goodwill Impairment	335	0
Allowance for doubtful accounts	277	71
Issuance of common stock for services	0	6
Changes in operating assets and liabilities:
Accounts receivable	(670)	(531)
Prepaid expenses and other current assets	(77)	(21)
Other long term assets	0	(12)
Accounts payable	333	653
Accrued liabilities	1,322	611
Operating lease liabilities	(235)	0
Other non-current liability	27	0
Deferred revenue	1,792	(682)
Net cash provided by operating activities	2,905	1,862
Investing activities:
Purchase of property and equipment	(2,220)	(834)
Net cash used in investing activities	(2,220)	(834)
Financing activities:
Proceeds from exercise of options and warrants	4,455	1,465
Finance lease payments	(35)	(262)
Net cash provided by financing activities	4,420	1,203
Increase in cash	5,105	2,231
Cash, beginning of year	3,237	1,006
Cash, end of year	8,342	3,237
Non-cash investing and financing activities:
Purchased equipment under finance lease	212	235
Right-of-use assets obtained in exchange for operating lease liabilities	3,201	0
Credit received on purchase of equipment	$ 160	$ 0