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Income Taxes - US Statutory Rate Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Federal income taxes at 34% statutory rate	$ 2,496,270	$ 1,878,464
State and local taxes, net of federal income tax effect	18,998	105,492
Permanent items	(25,077)	328,075
Foreign tax rate difference	(919,038)	(601,269)
Change in deferred income tax valuation allowance	74,552	110,110
Provision for income taxes	$ 1,645,705	$ 1,820,872

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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