Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Revenues:
Product	$ 11,008	$ 10,099	$ 22,454	$ 19,063
Service	6,829	6,490	12,581	12,530
Total revenues	17,837	16,589	35,035	31,593
Cost of sales:
Product	5,222	4,295	10,206	7,848
Service	2,659	2,751	5,371	5,390
Total cost of sales	7,881	7,046	15,577	13,238
Gross margin	9,956	9,543	19,458	18,355
Operating expenses:
Sales and marketing	3,513	3,643	6,995	7,281
Research and development	3,416	2,948	6,589	5,795
General and administrative	1,894	2,076	3,941	3,990
Total operating expenses	8,823	8,667	17,525	17,066
Operating income	1,133	876	1,933	1,289
Interest income	4	9	17	25
Interest expense	(17)	(17)	(33)	(36)
Other expense, net	(50)	(189)	(74)	(167)
Income before income taxes	1,070	679	1,843	1,111
(Benefit) provision for income taxes	(19)	6	20	113
Net income	$ 1,089	$ 673	$ 1,823	$ 998
Net income per share
Basic (in dollars per share)	$ 0.12	$ 0.08	$ 0.21	$ 0.11
Diluted (in dollars per share)	$ 0.12	$ 0.08	$ 0.20	$ 0.11
Weighted average shares outstanding - basic (in shares)	8,934	8,741	8,874	8,712
Weighted average shares outstanding - diluted (in shares)	9,041	8,851	9,060	8,852
Cash dividends declared per common share (in dollars per share)	$ 0.12	$ 0.56	$ 0.24	$ 0.68