Related Party Transactions (Details) (USD $)	3 Months Ended		6 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2014	Oct. 31, 2013	Apr. 30, 2014
Related Party Transaction [Line Items]
Revenue from related party	$ 288,000	$ 8,600,000	$ 549,000	$ 8,800,000
Sales revenue, related party, percentage (in hundredths)	26.00%	96.00%	14.00%	53.00%
Accounts receivable from related parties	82,000		82,000
Payable to parent	152,000		152,000		152,000	[1]
Inventories	1,700,000		1,700,000		1,398,000	[1]
Deferred revenues	463,000		463,000		470,000	[1]
BLM [Member]
Related Party Transaction [Line Items]
Revenue from related party	0	0	0	0
Accounts receivable from related parties	0		0		0
Outstanding voting stock held by Berjaya Lottery Management (H.K.) Ltd. (in hundredths)	71.30%		71.30%
Payable to parent	152,000		152,000		152,000
Inventories	0		0		0
Sports Toto Malaysia Sdn. Bhd. [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	16,000		16,000		0
Sports Toto Malaysia Sdn. Bhd. [Member] | Lottery Products and Support Services [Member]
Related Party Transaction [Line Items]
Revenue from related party	187,000		371,000
Deferred revenues	4,000		4,000		10,000
Sports Toto Malaysia Sdn. Bhd. [Member] | Contract Deliverables and Sale of Support Services [Member]
Related Party Transaction [Line Items]
Revenue from related party		8,500,000		8,700,000
PGMC [Member] | Lottery Products [Member]
Related Party Transaction [Line Items]
Revenue from related party	61,000	61,000	103,000	65,000
Accounts receivable from related parties	61,000		61,000		0
Deferred revenues	0		0		0
Natural Avenue Sdn. Bhd. [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	5,000		5,000		11,000
Deferred revenues	11,000		11,000		4,000
Natural Avenue Sdn. Bhd. [Member] | Support Services and Licensing [Member]
Related Party Transaction [Line Items]
Revenue from related party	40,000	35,000	75,000	71,000
Sports Toto Computers Sdn. Bhd. [Member]
Related Party Transaction [Line Items]
Services incurred	$ 68,000	$ 51,000	$ 136,000	$ 101,000

[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.