UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Oct. 31, 2017	Oct. 31, 2016
Operating activities:
Net loss	$ (768,475)	$ (3,051,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	711,000	1,664,000
Depreciation expense	132,000	87,000
Reversal of allowance for doubtful accounts	(41,000)	(2,000)
Issuance of common stock for services	30,000	15,000
Changes in operating assets and liabilities:
Accounts receivable	(263,000)	(577,000)
Prepaid expenses and other current assets	(3,000)	(3,000)
Accounts payable	(303,000)	(744,000)
Accrued liabilities	(295,000)	31,000
Other non-current liability	151,000	20,000
Deferred revenue	(1,031,000)	5,000
Net cash used in operating activities	(1,680,000)	(2,555,000)
Investing activities:
Purchase of property and equipment	(942,000)	(30,000)
Net cash used in investing activities	(942,000)	(30,000)
Financing activities:
Proceeds from June 2016 Public Offering, net of financing costs of $742	0	4,340,000
Capital lease payments	(13,000)	(12,000)
Net cash (used in)/provided by financing activities	(13,000)	4,328,000
(Decrease)/Increase in cash and cash equivalents.	(2,635,000)	1,743,000
Cash and cash equivalents, beginning of period	3,295,000	2,585,000
Cash and cash equivalents, end of period	$ 660,000	$ 4,328,000