Income Taxes (Details 8) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Tax Credit Carryforward [Line Items]
Unrecognized tax benefits	$ 761,000	$ 0	$ 27,000
Unrecognized tax benefits, interest and penalties	0	0
Unrecognized tax benefits, interest and penalties accrued	0	0
Deferred tax assets, valuation allowance	9,958,000	10,933,000
Deferred tax assets, valuation allowance, increase (decrease)	(900,000)	200,000
Undistributed earnings in foreign subsidiaries	3,700,000
Cash held in foreign subsidiaries for permanent reinvestment	4,500,000
Income tax due if cash held in foreign subsidiaries was repatriated	2,100,000
Income taxes paid	$ 10,100,000	$ 4,900,000	$ 11,300,000