Taxes (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Taxes [Line Items]
Income taxes (benefit) at U.S. statutory rate	$ 187,000	$ (23,000)
Change in valuation allowance	(152,000)	0
State income taxes, net of federal benefit	10,000	14,000
Higher / (lower) effective taxes on earnings/losses in certain foreign countries	(34,000)	(11,000)
Foreign corporate income taxes	13,000	17,000
Other, net	3,000	(20,000)
Income Tax Expense (Benefit), Total	$ 27,000	$ (23,000)