Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2012	Jun. 30, 2011
ASSETS
Cash and cash equivalents	$ 29,613,000	$ 27,814,000
Short-term investments		5,497,000
Accounts receivable, less allowance for doubtful accounts of $80 at June 30, 2012 and $82 at June 30, 2011	8,739,000	8,033,000
Inventories	3,683,000	3,847,000
Prepaid expenses and other current assets	2,129,000	1,888,000
Total current assets	44,164,000	47,079,000
Property, plant and equipment, net	3,966,000	4,754,000
Intangibles, net	1,738,000	2,611,000
Other long-term assets, net	1,076,000	1,588,000
Total assets	50,873,000	55,986,000
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued expenses	5,931,000	7,534,000
Deferred revenue	8,850,000	9,266,000
Total current liabilities	14,781,000	16,800,000
Long-term liabilities:
Deferred revenue	2,788,000	3,655,000
Pension liability	2,541,000	2,164,000
Other	1,657,000	1,888,000
Total liabilities	21,767,000	24,507,000
Commitments and contingencies (Note 17)
Stockholders' equity:
Shares of common stock, par value $.01; 14,000,000 authorized; and 8,700,789 and 8,481,643 issued and outstanding at June 30, 2012 and 2011, respectively	87,000	85,000
Capital in excess of par value	207,830,000	207,116,000
Accumulated deficit	(179,415,000)	(176,528,000)
Treasury stock, at cost; 37,788 shares at June 30, 2012 and 2011, respectively	(255,000)	(255,000)
Accumulated other comprehensive income	859,000	1,061,000
Total stockholders' equity	29,106,000	31,479,000
Total liabilities and stockholders' equity	50,873,000	55,986,000
Purchased Technology [Member]
ASSETS
Intangibles, net	928,000	1,653,000
Customer Relationships [Member]
ASSETS
Intangibles, net	739,000	912,000
Series Preferred Stock [Member]
Stockholders' equity:
Shares of preferred stock
Preferred Class A [Member]
Stockholders' equity:
Shares of preferred stock