Note 10 - Operating Segments (Detail) - Financial Information of Reportable Segments (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Revenue:
Revenue	$ 77,414	$ 66,054	$ 136,198	$ 122,107
Gross profit:
Gross Profit	50,094	42,489	87,966	78,310
Operating income (loss):
Operating Income (Loss)	17,127	14,760	26,706	25,874
Depreciation and amortization:
Depreciation And Amortization	6,768	6,380	13,656	12,397
Capital expenditures:
Capital Expenditures	8,813	6,287	13,133	15,049
Utility [Member]
Revenue:
Revenue	30,517	24,990	55,801	44,606
Gross profit:
Gross Profit	20,077	16,154	36,134	27,337
Operating income (loss):
Operating Income (Loss)	17,507	14,202	31,199	23,652
Depreciation and amortization:
Depreciation And Amortization	1,757	1,899	3,624	3,675
Capital expenditures:
Capital Expenditures	2,184	990	3,867	2,210
Proprietary Table Games [Member]
Revenue:
Revenue	14,003	11,886	26,831	23,311
Gross profit:
Gross Profit	11,509	9,750	22,014	19,042
Operating income (loss):
Operating Income (Loss)	9,991	8,769	18,444	17,215
Depreciation and amortization:
Depreciation And Amortization	1,229	1,350	3,145	2,603
Capital expenditures:
Capital Expenditures	708	664	1,095	1,749
Electronic Table Systems [Member]
Revenue:
Revenue	7,113	6,866	14,218	15,130
Gross profit:
Gross Profit	2,483	2,684	5,453	6,813
Operating income (loss):
Operating Income (Loss)	(777)	(838)	(703)	(121)
Depreciation and amortization:
Depreciation And Amortization	2,364	1,653	4,224	3,310
Capital expenditures:
Capital Expenditures	799	506	1,398	2,226
Electronic Gaming Machines [Member]
Revenue:
Revenue	25,745	22,244	39,062	36,742
Gross profit:
Gross Profit	15,994	13,833	24,087	22,800
Operating income (loss):
Operating Income (Loss)	10,820	10,394	15,221	16,247
Depreciation and amortization:
Depreciation And Amortization	461	345	748	543
Capital expenditures:
Capital Expenditures	342	872	569	5,130
iGaming [Member]
Revenue:
Revenue	36	68	286	2,318
Gross profit:
Gross Profit	31	68	278	2,318
Operating income (loss):
Operating Income (Loss)	(1,766)	(2,033)	(2,926)	(574)
Depreciation and amortization:
Depreciation And Amortization	35		68
Capital expenditures:
Capital Expenditures	431	234	1,080	689
Unallocated Corporate [Member]
Operating income (loss):
Operating Income (Loss)	(18,648)	(15,734)	(34,529)	(30,545)
Depreciation and amortization:
Depreciation And Amortization	922	1,133	1,847	2,266
Capital expenditures:
Capital Expenditures	$ 4,349	$ 3,021	$ 5,124	$ 3,045