Income Taxes, Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
Net operating loss carryforwards	$ 2,700
Cash and cash equivalents	8,811	$ 10,935	$ 7,018	$ 5,813
Cash and cash equivalents indefinitely reinvested in Chinese operations	$ 6,600