Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Jun. 30, 2013
Current assets:
Cash and cash equivalents	$ 22,452	$ 27,927
Accounts receivable, less allowance for doubtful accounts of $78 at March 31, 2014 and $70 at June 30, 2013	18,165	10,701
Inventories	3,609	2,844
Prepaid expenses and other current assets	1,426	2,324
Total current assets	45,652	43,796
Property, plant and equipment, net	2,992	3,102
Intangible assets, net	512	834
Other long-term assets, net	921	737
Total assets	50,077	48,469
Current liabilities:
Accounts payable and accrued expenses	9,274	7,671
Deferred revenue	8,590	8,383
Total current liabilities	17,864	16,054
Non-current liabilities:
Deferred revenue	1,160	1,924
Pension liability	3,115	2,901
Other	1,872	1,805
Total liabilities	24,011	22,684
Commitments and contingencies (Note 12)
Stockholders' equity:
Shares of common stock, par value $.01; 14,000,000 authorized; 8,981,655 and 8,807,766 issued and outstanding at March 31, 2014 and June 30, 2013, respectively	90	88
Capital in excess of par value	209,464	208,677
Accumulated deficit	(183,494)	(183,085)
Treasury stock, at cost; 37,788 at March 31, 2014 and June 30, 2013	(255)	(255)
Accumulated other comprehensive income	261	360
Total stockholders' equity	26,066	25,785
Total liabilities and stockholders' equity	$ 50,077	$ 48,469