Condensed Consolidated Statements Of Operations (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Revenues:
Product	$ 10,099,000	$ 10,034,000	$ 19,063,000	$ 16,818,000
Service	6,490,000	6,376,000	12,530,000	12,480,000
Total revenues	16,589,000	16,410,000	31,593,000	29,298,000
Cost of sales:
Product	4,295,000	4,569,000	7,848,000	7,339,000
Service	2,751,000	2,843,000	5,390,000	5,680,000
Total cost of sales	7,046,000	7,412,000	13,238,000	13,019,000
Gross margin	9,543,000	8,998,000	18,355,000	16,279,000
Operating expenses:
Sales and marketing	3,643,000	4,296,000	7,281,000	8,598,000
Research and development	2,948,000	3,346,000	5,795,000	6,926,000
General and administrative	2,076,000	1,817,000	3,990,000	3,720,000
Total operating expenses	8,667,000	9,459,000	17,066,000	19,244,000
Operating income (loss)	876,000	(461,000)	1,289,000	(2,965,000)
Interest income	9,000	34,000	25,000	95,000
Interest expense	(17,000)	(18,000)	(36,000)	(36,000)
Other (expense) income, net	(189,000)	(196,000)	(167,000)	(226,000)
Income (loss) before income taxes	679,000	(641,000)	1,111,000	(3,132,000)
Provision for income taxes	6,000	192,000	113,000	301,000
Net income (loss)	$ 673,000	$ (833,000)	$ 998,000	$ (3,433,000)
Net income (loss) per share
Basic	$ 0.08	$ (0.10)	$ 0.11	$ (0.40)
Diluted	$ 0.08	$ (0.10)	$ 0.11	$ (0.40)
Weighted average shares outstanding - basic	8,741	8,621	8,712	8,554
Weighted average shares outstanding - diluted	8,851	8,621	8,852	8,554
Cash dividends declared per common share	$ 0.56		$ 0.68