Basis of Presentation and Significant Accounting Policies (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Assets
Prepaid licenses & maintenance contracts, current	$ 15	$ 4,638
Prepaid licenses & maintenance contracts, non-current		2,264
Liabilities
Deferred revenue, current	182	5,554
Deferred revenue non-current		2,636
Equity
Accumulated deficit	$ (3,123)
Adjustments due to ASU 2014-09 [Member]
Assets
Prepaid licenses & maintenance contracts, current		(4,638)
Prepaid licenses & maintenance contracts, non-current		(2,264)
Liabilities
Deferred revenue, current		(5,554)
Deferred revenue non-current		(2,636)
Equity
Accumulated deficit		1,287
Balance at January 1, 2018 [Member]
Assets
Prepaid licenses & maintenance contracts, current
Prepaid licenses & maintenance contracts, non-current
Liabilities
Deferred revenue, current
Deferred revenue non-current
Equity
Accumulated deficit		$ (20,885)