Organization, Use of Estimates and Basis of Presentation (Tables)

6 Months Ended

Oct. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Cash and Restricted Cash

Cash and restricted cash consists of the following (table in thousands):

	October 31, 2018		April 30, 2018
	(unaudited)
Cash	$	1,956	$	856
Restricted cash	—		150
Total cash and restricted cash shown in the statement of cash flows	$	1,956	$	1,006

Summary of the Calculation of Earnings per Share, Basic and Diluted

	Three Months Ended October 31,					Six Months Ended October 31,
	2018		2017			2018		2017
Basic and diluted net loss per share computation (dollars in thousands):
Net income (loss) attributable to common stockholders	$	267	$	(94	)	$	750	$	(768	)
Weighted Average common shares – basic	11,278,312		10,988,321			11,135,358		10,984,703
Basic net income (loss) per share	$	0.02	$	(0.01	)	$	0.07	$	(0.07	)
Diluted income (loss) per share computation:
Net income (loss) attributable to common stockholders	$	267	$	(94	)	$	750	$	(768	)
Income (loss) available to common stockholders	$	267	$	(94	)	$	750	$	(768	)
Weighted Average common shares	11,278,312		10,988,321			11,135,358		10,984,703
Incremental shares from assumed exercise of warrants and stock options	2,758,778		—			2,356,144		—
Adjusted weighted average share – diluted	14,037,090		10,988,321			13,491,502		10,984,703
Diluted net income (loss) per share	$	0.02	$	(0.01	)	$	0.06	$	(0.07	)

Summary of Antidilutive Securities Excluded from Earnings Per Share Calculations

The following table reflects the total potential share-based instruments outstanding at October 31, 2018 and 2017 that could have an effect on the future computation of dilution per common share:

	October 31,
	2018	2017
Stock options	2,466,877	2,494,930
Warrants	1,878,219	2,004,284
Total common stock equivalents	4,345,096	4,499,214