Related Party Transactions (Details) (USD $)	3 Months Ended		9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013	Apr. 30, 2013
Related Party Transaction [Line Items]
Revenue from related party	$ 2,900,000	$ 646,000	$ 11,700,000	$ 3,700,000
Sales revenue, related party, percentage (in hundredths)	73.00%	32.00%	56.00%	48.00%
Accounts receivable from related parties	157,000		157,000
Outstanding voting stock held by Berjaya Lottery Management (H.K.) Ltd. (in hundredths)	71.30%		71.30%
Payable to parent	202,000		202,000		202,000	[1]
Inventories	1,431,000		1,431,000		3,665,000	[1]
Deferred Costs, Current	1,000		1,000		132,000	[1]
Deferred revenues	785,000		785,000		5,451,000	[1]
BLM [Member]
Related Party Transaction [Line Items]
Revenue from related party	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	202,000		202,000		202,000
Inventories	0		0		0
Sports Toto Malaysia Sdn. Bhd. [Member]
Related Party Transaction [Line Items]
Revenue from related party	11,000,000
Accounts receivable from related parties	146,000		146,000		410,000
Sports Toto Malaysia Sdn. Bhd. [Member] | Lottery Products [Member]
Related Party Transaction [Line Items]
Deferred Costs, Current	0		0		104,000
Sports Toto Malaysia Sdn. Bhd. [Member] | Lottery Products and Support Services [Member]
Related Party Transaction [Line Items]
Revenue from related party	2,900,000		11,500,000
Deferred revenues	7,000		7,000		3,300,000
Sports Toto Malaysia Sdn. Bhd. [Member] | Contract Deliverables and Sale of Support Services [Member]
Related Party Transaction [Line Items]
Revenue from related party		609,000		2,500,000
PGMC [Member] | Lottery Products [Member]
Related Party Transaction [Line Items]
Revenue from related party	7,000	2,000	72,000	1,100,000
Accounts receivable from related parties	0		0		0
Deferred revenues	0		0		0
Natural Avenue Sdn. Bhd. [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	11,000		11,000		1,000
Deferred revenues	8,000		8,000
Natural Avenue Sdn. Bhd. [Member] | Lottery Product Licensing [Member]
Related Party Transaction [Line Items]
Deferred revenues					4,000
Natural Avenue Sdn. Bhd. [Member] | Support Services and Licensing [Member]
Related Party Transaction [Line Items]
Revenue from related party	36,000	35,000	107,000	105,000
Sports Toto Computers Sdn. Bhd. [Member]
Related Party Transaction [Line Items]
Services incurred	$ 51,000	$ 65,000	$ 152,000	$ 145,000

[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, 2013 filed with the SEC.