CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016
Current assets:
Cash and cash equivalents	$ 18,804	$ 20,268
Accounts receivable, net of allowance for doubtful accounts of $54 and $55 at December 31, 2016 and June 30, 2016, respectively	7,896	15,104
Inventories	2,001	3,495
Prepaid expenses and other current assets	1,220	1,061
Total current assets	29,921	39,928
Property and equipment, net	2,763	3,061
Deferred income taxes, net	820	924
Other long-term assets, net	1,281	1,323
Total assets	34,785	45,236
Current liabilities:
Accounts payable and accrued expenses	5,908	9,191
Deferred revenue	6,605	8,126
Total current liabilities	12,513	17,317
Long-term liabilities:
Deferred revenue	708	1,168
Pension liability	3,558	3,720
Other long-term liabilities	2,001	2,033
Total liabilities	18,780	24,238
Commitments and contingencies (Note 17)
Stockholders' equity:
Shares of common stock, par value $0.01; 14,000,000 authorized; 9,296,704 and 9,218,093 issued and outstanding at December 31, 2016 and June 30, 2016, respectively	93	92
Capital in excess of par value	211,521	210,971
Accumulated deficit	(194,625)	(189,265)
Treasury stock, at cost; 37,788 shares	(255)	(255)
Accumulated other comprehensive income (loss)	(729)	(545)
Total stockholders' equity	16,005	20,998
Total liabilities and stockholders' equity	34,785	45,236
Series Preferred Stock [Member]
Stockholders' equity:
Shares of preferred stock	0	0
Preferred Class A [Member]
Stockholders' equity:
Shares of preferred stock	$ 0	$ 0