Accumulated Other Comprehensive Loss (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive (loss) income, beginning balance	$ (1,895,102)	$ (1,958,843)
Other comprehensive income (loss)
Other comprehensive income (loss) before reclassifications	2,087	58,292
Amounts reclassified from accumulated other comprehensive income (loss)	(245)	5,449
Total other comprehensive income (loss)	1,842	63,741
Accumulated other comprehensive (loss) income, ending balance	(1,893,260)	(1,895,102)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive (loss) income, beginning balance	(1,921,905)	(1,980,940)
Other comprehensive income (loss)
Other comprehensive income (loss) before reclassifications	(4,921)	59,035
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Total other comprehensive income (loss)	(4,921)	59,035
Accumulated other comprehensive (loss) income, ending balance	(1,926,826)	(1,921,905)
Net Minimum Pension Liability
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive (loss) income, beginning balance	26,803	22,097
Other comprehensive income (loss)
Other comprehensive income (loss) before reclassifications	7,008	(743)
Amounts reclassified from accumulated other comprehensive income (loss)	(245)	5,449
Total other comprehensive income (loss)	6,763	4,706
Accumulated other comprehensive (loss) income, ending balance	$ 33,566	$ 26,803