Note 16 - Segment Information (Detail) - Financial Information by Geographic Segment: (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Revenue-
Product sales	$ 49,527,000	$ 49,678,000
Service revenue	20,798,000	20,678,000
Commission revenue	19,052,000	18,836,000
Cost of revenue-
Cost of product sales	33,793,000	33,361,000
Cost of service revenue	13,485,000	14,152,000
Total cost of revenue	47,278,000	47,513,000
Gross margin	42,099,000	41,679,000
Total operating expenses	37,253,000	38,799,000
Operating income	4,846,000	2,880,000
Other expense, net	(503,000)	(861,000)
Income before income taxes	4,343,000	2,019,000
North America [Member]
Revenue-
Product sales	43,953,000	44,667,000
Service revenue	19,090,000	19,221,000
Commission revenue	18,101,000	18,030,000
Total revenue	81,144,000	81,918,000
Cost of revenue-
Cost of product sales	29,738,000	29,574,000
Cost of service revenue	12,479,000	13,287,000
Total cost of revenue	42,217,000	42,861,000
Gross margin	38,927,000	39,057,000
Total operating expenses	34,225,000	36,579,000
Operating income	4,702,000	2,478,000
Other expense, net	(478,000)	(862,000)
Income before income taxes	4,224,000	1,616,000
Singapore/Malaysia [Member]
Revenue-
Product sales	3,057,000	2,948,000
Service revenue	566,000	552,000
Commission revenue	229,000	253,000
Total revenue	3,852,000	3,753,000
Cost of revenue-
Cost of product sales	2,287,000	2,316,000
Cost of service revenue	424,000	422,000
Total cost of revenue	2,711,000	2,738,000
Gross margin	1,141,000	1,015,000
Total operating expenses	1,115,000	806,000
Operating income	26,000	209,000
Other expense, net	(49,000)	(16,000)
Income before income taxes	(23,000)	193,000
Australia [Member]
Revenue-
Product sales	2,517,000	2,063,000
Service revenue	1,142,000	905,000
Commission revenue	722,000	553,000
Total revenue	4,381,000	3,521,000
Cost of revenue-
Cost of product sales	1,768,000	1,471,000
Cost of service revenue	582,000	443,000
Total cost of revenue	2,350,000	1,914,000
Gross margin	2,031,000	1,607,000
Total operating expenses	1,913,000	1,414,000
Operating income	118,000	193,000
Other expense, net	24,000	17,000
Income before income taxes	142,000	210,000
Total [Member]
Revenue-
Product sales	49,527,000	49,678,000
Service revenue	20,798,000	20,678,000
Commission revenue	19,052,000	18,836,000
Total revenue	89,377,000	89,192,000
Cost of revenue-
Cost of product sales	33,793,000	33,361,000
Cost of service revenue	13,485,000	14,152,000
Total cost of revenue	47,278,000	47,513,000
Gross margin	42,099,000	41,679,000
Total operating expenses	37,253,000	38,799,000
Operating income	4,846,000	2,880,000
Other expense, net	(503,000)	(861,000)
Income before income taxes	$ 4,343,000	$ 2,019,000