Note 11 - Segment Information (Detail) - Financial Information by Geographic Segment: (USD $)	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Revenue-
Product sales	$ 11,515,000	$ 13,277,000
Service revenue	5,374,000	4,802,000
Commission revenue	4,712,000	3,865,000
Total revenue	21,601,000	21,944,000
Cost of revenue-
Cost of product sales	7,331,000	9,302,000
Cost of service revenue	3,695,000	3,132,000
Total cost of revenue	11,026,000	12,434,000
Gross margin	10,575,000	9,510,000
Total operating expenses	9,631,000	8,914,000
Operating income (loss)	944,000	596,000
Other expense, net	(20,000)	(142,000)
Income (loss) before income taxes	924,000	454,000
North America [Member]
Revenue-
Product sales	10,050,000	11,297,000
Service revenue	4,960,000	4,348,000
Commission revenue	4,342,000	3,635,000
Total revenue	19,352,000	19,280,000
Cost of revenue-
Cost of product sales	6,194,000	7,870,000
Cost of service revenue	3,445,000	2,879,000
Total cost of revenue	9,639,000	10,749,000
Gross margin	9,713,000	8,531,000
Total operating expenses	8,810,000	8,224,000
Operating income (loss)	903,000	307,000
Other expense, net	(29,000)	(131,000)
Income (loss) before income taxes	874,000	176,000
Singapore/Malaysia [Member]
Revenue-
Product sales	1,003,000	781,000
Service revenue	118,000	194,000
Commission revenue	54,000	21,000
Total revenue	1,175,000	996,000
Cost of revenue-
Cost of product sales	817,000	566,000
Cost of service revenue	79,000	122,000
Total cost of revenue	896,000	688,000
Gross margin	279,000	308,000
Total operating expenses	313,000	242,000
Operating income (loss)	(34,000)	66,000
Other expense, net	2,000	(15,000)
Income (loss) before income taxes	(32,000)	51,000
Australia [Member]
Revenue-
Product sales	462,000	1,199,000
Service revenue	296,000	260,000
Commission revenue	316,000	209,000
Total revenue	1,074,000	1,668,000
Cost of revenue-
Cost of product sales	320,000	866,000
Cost of service revenue	171,000	131,000
Total cost of revenue	491,000	997,000
Gross margin	583,000	671,000
Total operating expenses	508,000	448,000
Operating income (loss)	75,000	223,000
Other expense, net	7,000	4,000
Income (loss) before income taxes	$ 82,000	$ 227,000