Condensed Consolidated Statements Of Operations (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Revenues:
Product	$ 10,714,000	$ 9,996,000	$ 29,777,000	$ 26,814,000
Service	6,213,000	6,295,000	18,743,000	18,775,000
Total revenues	16,927,000	16,291,000	48,520,000	45,589,000
Cost of sales:
Product	4,591,000	3,329,000	12,439,000	10,668,000
Service	2,336,000	2,950,000	7,726,000	8,630,000
Total cost of sales	6,927,000	6,279,000	20,165,000	19,298,000
Gross margin	10,000,000	10,012,000	28,355,000	26,291,000
Operating expenses:
Sales and marketing	3,527,000	3,993,000	10,808,000	12,591,000
Research and development	2,878,000	3,446,000	8,673,000	10,372,000
General and administrative	2,362,000	1,841,000	6,352,000	5,561,000
Total operating expenses	8,767,000	9,280,000	25,833,000	28,524,000
Operating income (loss)	1,233,000	732,000	2,522,000	(2,233,000)
Interest income	8,000	6,000	34,000	101,000
Interest expense	(15,000)	(21,000)	(50,000)	(56,000)
Other expense, net	(222,000)	(249,000)	(391,000)	(476,000)
Income (loss) before income taxes	1,004,000	468,000	2,115,000	(2,664,000)
Provision for income taxes	67,000	131,000	180,000	432,000
Net income (loss)	$ 937,000	$ 337,000	$ 1,935,000	$ (3,096,000)
Net income (loss) per share
Basic	$ 0.11	$ 0.04	$ 0.22	$ (0.36)
Diluted	$ 0.11	$ 0.04	$ 0.22	$ (0.36)
Weighted average shares outstanding - basic	8,754	8,644	8,726	8,584
Weighted average shares outstanding - diluted	8,894	8,751	8,873	8,584
Cash dividends declared per common share	$ 0.06		$ 0.74