Income Taxes - Narrative (Details)	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2013 acquisition
Operating Loss Carryforwards [Line Items]
U.S statutory rate	34.00%	34.00%
Income tax provision	$ 447,000	$ 349,000
Nondeductible expense related to amortization of indefinite-lived intangibles	100,000	100,000
Deferred tax assets, net	0
Deferred tax liability	372,000	744,000
Foreign tax credit	692,000	692,000
Number of entities acquired | acquisition			1
Undistributed earnings of foreign subsidiaries		3,500,000
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Current income tax expense	0	0
Internal Revenue Service (IRS)
Operating Loss Carryforwards [Line Items]
Loss carry-forwards	72,300,000
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Loss carry-forwards	0	$ 0
Operating loss carryforward foreign	$ 10,000,000