Segment Information (Continuing Operating Segments) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) segment	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Net revenues	$ 2,132	$ 1,917	$ 6,065	$ 5,379
Interest income	4	0	6	2
Depreciation and amortization			264	120
Interest expense	3	5	9	12
Purchase of property and equipment			19	45
Total assets	13,744		13,744		$ 13,764
Income before income taxes	299	481	$ 1,911	1,407
Number of reportable segments | segment			2
Production Monitoring [Member]
Net revenues	2,132	1,917	$ 6,065	5,379
Income before income taxes	295	223	456	397
Segment Investments [Member]
Income before income taxes	$ 4	$ 258	$ 1,455	$ 1,010