Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Revenues:
Product	$ 11,327	$ 12,197	$ 34,881	$ 34,651
Service	5,783	6,081	15,765	18,662
Total revenues	17,110	18,278	50,646	53,313
Cost of sales:
Product	4,578	5,495	14,897	15,701
Service	2,447	2,535	7,159	7,906
Total cost of sales	7,025	8,030	22,056	23,607
Gross margin	10,085	10,248	28,590	29,706
Operating expenses:
Sales and marketing	3,410	3,595	10,889	10,590
Research and development	3,484	3,409	10,164	9,998
General and administrative	1,729	1,984	6,173	5,925
Gain on sale of IPv4 addresses, net	0	0	(339)	0
Total operating expenses	8,623	8,988	26,887	26,513
Operating income	1,462	1,260	1,703	3,193
Interest income	2	2	7	18
Interest expense	0	(9)	0	(41)
Other expense, net	(1)	(31)	(377)	(105)
Income before income taxes	1,463	1,222	1,333	3,065
Provision for income taxes	679	140	733	160
Net income	$ 784	$ 1,082	$ 600	$ 2,905
Net income per share
Basic (in dollars per share)	$ 0.09	$ 0.12	$ 0.07	$ 0.33
Diluted (in dollars per share)	$ 0.09	$ 0.12	$ 0.07	$ 0.32
Weighted average shares outstanding - basic (in shares)	9,096	8,944	9,058	8,897
Weighted average shares outstanding - diluted (in shares)	9,143	9,090	9,141	9,074
Cash dividends declared per common share (in dollars per share)	$ 0.12	$ 0.12	$ 0.36	$ 0.36