Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jun. 30, 2017
Accounts payable, trade	$ 492	$ 246
Accrued trade settlement	2,679	0
Accrued payroll, vacation and other employee expenses	168	1,240
Accrued Real-Time business sale transaction expenses	0	1,767
Unrecognized income from research and development tax credits	142	566
Accrued income taxes	11	415
Dividend payable	1	60
Other accrued expenses	259	227
Accounts payable and accrued expenses, Total	$ 3,752	$ 4,521