Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jul. 31, 2014 Segment	Jul. 31, 2013	Apr. 30, 2014
Segment Information [Abstract]
Number of operating segments	2
Segment Reporting Information [Line Items]
Total revenues	$ 2,873	$ 7,766
(Loss) income from operations	75	1,121
Depreciation and amortization	59	46
Segment assets	13,694	14,873	13,435	[1]
Gaming Business [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	278	6,870
(Loss) income from operations	(759)	1,011
Depreciation and amortization	39	26
Segment assets	10,494	13,237
Voting Business [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenues	2,595	896
(Loss) income from operations	834	110
Depreciation and amortization	20	20
Segment assets	$ 3,200	$ 1,636

[1] Derived from the consolidated audited financial statements included in the Company's Annual Report on Form 10-K for the fiscal year ended April 30, 2014 filed with the SEC.