Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Jun. 30, 2014
Current assets:
Cash and cash equivalents	$ 26,222	$ 28,074
Accounts receivable, net of allowance for doubtful accounts of $67 at September 30, 2014 and $78 at June 30, 2014	12,670	11,355
Inventories	3,079	3,272
Deferred income taxes - current, net	1,407	1,458
Prepaid expenses and other current assets	1,155	804
Total current assets	44,533	44,963
Property, plant and equipment, net	3,083	3,081
Intangible assets, net	442	476
Deferred income taxes, net	13,216	13,231
Other long-term assets, net	588	635
Total assets	61,862	62,386
Current liabilities:
Accounts payable and accrued expenses	6,615	7,591
Deferred revenue	8,512	7,441
Total current liabilities	15,127	15,032
Long-term liabilities:
Deferred revenue	1,482	1,400
Pension liability	3,327	3,566
Other	1,750	1,934
Total liabilities	21,686	21,932
Commitments and contingencies (Note 12)
Stockholders' equity:
Shares of common stock, par value $.01; 14,000,000 authorized; 9,093,994 and 8,996,655 issued and outstanding at September 30, 2014 and June 30, 2014	91	90
Capital in excess of par value	209,936	209,711
Accumulated deficit	(169,726)	(169,001)
Treasury stock, at cost; 37,788 shares	(255)	(255)
Accumulated other comprehensive income	130	(91)
Total stockholders' equity	40,176	40,454
Total liabilities and stockholders' equity	61,862	62,386
Series Preferred Stock [Member]
Stockholders' equity:
Shares of preferred stock	0	0
Preferred Class A [Member]
Stockholders' equity:
Shares of preferred stock	$ 0	$ 0