UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Operating activities:
Net income (loss)	$ 381,000	$ (844,000)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Stock-based compensation and modification expense	498,000	848,000
Issuance of common stock for services	8,000	15,000
Depreciation and amortization expense	433,000	253,000
Provision for doubtful accounts	53,000	0
Deferred rent	279,000	302,000
Changes in operating assets and liabilities:
Accounts receivable	(55,000)	(669,000)
Prepaid expenses and other current assets	(11,000)	115,000
Other long term assets	21,000	0
Accounts payable	(46,000)	124,000
Accrued liabilities	72,000	(320,000)
Deferred revenue	19,000	(1,059,000)
Net cash provided by (used in) operating activities	1,610,000	(1,235,000)
Investing activities:
Purchase of property and equipment	(693,000)	(1,017,000)
Net cash used in investing activities	(693,000)	(1,017,000)
Financing activities:
Proceeds from exercise of options and warrants	1,440,000	38,000
Capital lease payments	(53,000)	(19,000)
Net cash provided by financing activities	1,387,000	19,000
Increase/(decrease) in cash and restricted cash	2,304,000	(2,233,000)
Cash and restricted cash at beginning of period	1,006,000	3,295,000
Cash and restricted cash at end of period	3,310,000	1,062,000
Non-cash investing activities:
Purchase equipment under capital lease	$ 235,000	$ 0