Note 9 - Segment Information (Detail) - Financial Information by Geographic Segment: (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Revenue-
Product sales	$ 10,540,000	$ 12,771,000	$ 22,055,000	$ 26,046,000
Service revenue	5,505,000	5,255,000	10,878,000	10,059,000
Commission revenue	5,536,000	4,447,000	10,249,000	8,311,000
Total revenue	21,581,000	22,473,000	43,182,000	44,416,000
Cost of revenue-
Cost of product sales	6,858,000	8,703,000	14,188,000	18,003,000
Cost of service revenue	3,816,000	3,198,000	7,510,000	6,332,000
Total cost of revenue	10,674,000	11,901,000	21,698,000	24,335,000
Gross margin	10,907,000	10,572,000	21,484,000	20,081,000
Total operating expenses	9,772,000	9,229,000	19,404,000	18,143,000
Operating income (loss)	1,135,000	1,343,000	2,080,000	1,938,000
Other expense, net	(84,000)	(197,000)	(104,000)	(338,000)
Income (loss) before income taxes	1,051,000	1,146,000	1,976,000	1,600,000
North America [Member]
Revenue-
Product sales	9,569,000	11,529,000	19,619,000	22,826,000
Service revenue	5,191,000	4,845,000	10,151,000	9,193,000
Commission revenue	5,356,000	4,255,000	9,698,000	7,890,000
Total revenue	20,116,000	20,629,000	39,468,000	39,909,000
Cost of revenue-
Cost of product sales	6,113,000	7,918,000	12,306,000	15,787,000
Cost of service revenue	3,513,000	2,907,000	6,958,000	5,787,000
Total cost of revenue	9,626,000	10,825,000	19,264,000	21,574,000
Gross margin	10,490,000	9,804,000	20,204,000	18,335,000
Total operating expenses	8,967,000	8,500,000	17,777,000	16,724,000
Operating income (loss)	1,523,000	1,304,000	2,427,000	1,611,000
Other expense, net	(94,000)	(194,000)	(123,000)	(325,000)
Income (loss) before income taxes	1,429,000	1,110,000	2,304,000	1,286,000
Singapore/Malaysia [Member]
Revenue-
Product sales	571,000	889,000	1,574,000	1,669,000
Service revenue	59,000	144,000	177,000	339,000
Commission revenue	48,000	81,000	102,000	101,000
Total revenue	678,000	1,114,000	1,853,000	2,109,000
Cost of revenue-
Cost of product sales	462,000	591,000	1,279,000	1,157,000
Cost of service revenue	103,000	157,000	182,000	278,000
Total cost of revenue	565,000	748,000	1,461,000	1,435,000
Gross margin	113,000	366,000	392,000	674,000
Total operating expenses	262,000	282,000	575,000	522,000
Operating income (loss)	(149,000)	84,000	(183,000)	152,000
Other expense, net	4,000	(8,000)	6,000	(23,000)
Income (loss) before income taxes	(145,000)	76,000	(177,000)	129,000
Australia [Member]
Revenue-
Product sales	400,000	353,000	862,000	1,551,000
Service revenue	255,000	266,000	550,000	527,000
Commission revenue	132,000	111,000	449,000	320,000
Total revenue	787,000	730,000	1,861,000	2,398,000
Cost of revenue-
Cost of product sales	283,000	194,000	603,000	1,059,000
Cost of service revenue	200,000	134,000	370,000	267,000
Total cost of revenue	483,000	328,000	973,000	1,326,000
Gross margin	304,000	402,000	888,000	1,072,000
Total operating expenses	543,000	447,000	1,052,000	897,000
Operating income (loss)	(239,000)	(45,000)	(164,000)	175,000
Other expense, net	6,000	5,000	13,000	10,000
Income (loss) before income taxes	$ (233,000)	$ (40,000)	$ (151,000)	$ 185,000