Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Cash flows provided by (used in) operating activities:
Net income (loss)	$ 4,248,000	$ (2,887,000)	$ (3,255,000)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	3,158,000	3,714,000	3,351,000
Share-based compensation	848,000	716,000	1,226,000
Non-cash accretion expense	4,000	93,000	36,000
Other non-cash expenses	608,000	241,000	(414,000)
Gain on sale of intellectual property, net	(2,381,000)
Decrease (increase) in assets:
Accounts receivable	(1,976,000)	(708,000)	6,161,000
Inventories	593,000	(25,000)	546,000
Prepaid expenses and other current assets	(341,000)	(146,000)	31,000
Other long-term assets, net	236,000	499,000	452,000
Increase (decrease) in liabilities:
Accounts payable and accrued expenses, net	1,262,000	(1,649,000)	(2,550,000)
Deferred revenue	(1,331,000)	(1,283,000)	(2,522,000)
Long-term liabilities, net	(4,000)	(140,000)	442,000
Net cash provided by (used in) operating activities	4,924,000	(1,575,000)	3,504,000
Cash flows provided by (used in) investing activities:
Additions to property and equipment	(1,447,000)	(1,977,000)	(1,956,000)
Proceeds from sale of intellectual property	2,750,000
Proceeds from sale or maturity of short-term investments		7,634,000	1,500,000
Purchase of short-term investments		(2,226,000)	(6,997,000)
Net cash provided by (used in) investing activities	1,303,000	3,431,000	(7,453,000)
Cash flows used in financing activities:
Dividends paid	(7,542,000)
Net cash used in financing activities	(7,542,000)
Effect of exchange rates on cash and cash equivalents	(371,000)	(57,000)	399,000
Change in cash and cash equivalents	(1,686,000)	1,799,000	(3,550,000)
Cash and cash equivalents - beginning of year	29,613,000	27,814,000	31,364,000
Cash and cash equivalents - end of year	27,927,000	29,613,000	27,814,000
Cash paid during the period for:
Interest	27,000	28,000	29,000
Income taxes (net of refunds)	$ 880,000	$ 908,000	$ 340,000