CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Current assets:
Cash and cash equivalents	$ 35,893	$ 18,798
Short-term investments	6,870	0
Accounts receivable, net of allowance for doubtful accounts of $10 at both June 30, 2017 and 2016	6,930	8,862
Receivable from sale of Real-Time business held in escrow	2,000	0
Inventories	1,865	2,342
Prepaid expenses and other current assets	1,366	711
Current assets of discontinued operations	0	9,215
Total current assets	54,924	39,928
Property and equipment, net	1,726	2,578
Deferred income taxes, net	15	146
Other long-term assets, net	1,142	668
Noncurrent assets of discontinued operations	0	1,916
Total assets	57,807	45,236
Current liabilities:
Accounts payable and accrued expenses	8,164	6,315
Deferred revenue	1,454	4,017
Current liabilities of discontinued operations	0	6,985
Total current liabilities	9,618	17,317
Long-term liabilities:
Deferred revenue	66	198
Pension liability	3,582	3,720
Other long-term liabilities	1,072	1,056
Noncurrent liabilities of discontinued operations	0	1,947
Total liabilities	14,338	24,238
Commitments and contingencies (Note 16)
Stockholders’ equity:
Shares of common stock, par value $.01; 14,000,000 authorized; 9,410,878 and 9,218,093 issued and outstanding at June 30, 2017 and 2016, respectively	94	92
Capital in excess of par value	212,018	210,971
Accumulated deficit	(165,498)	(189,265)
Treasury stock, at cost; 37,788 shares	(255)	(255)
Accumulated other comprehensive income (loss)	(2,890)	(545)
Total stockholders’ equity	43,469	20,998
Total liabilities and stockholders’ equity	57,807	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