Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Total Revenues	$ 4,873	$ 6,545	$ 7,753
Spare parts and warranties [Member]
Total Revenues	488	308	263	[1]
Units Placed [Member]
Total Revenues	$ 4,385	$ 6,237	$ 7,490	[1]

[1] As noted above, prior period amounts have not been adjusted under the modified retrospective method.