Accumulated Other Comprehensive Loss (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other comprehensive income (loss)
Accumulated other comprehensive (loss) income, beginning balance			$ (14,031,306)
Total other comprehensive income (loss), net of applicable taxes:	$ (8,087)	$ (49,410)	(21,240)	$ (30,018)
Accumulated other comprehensive (loss) income, ending balance	(15,095,844)		(15,095,844)
Foreign Currency Translation
Other comprehensive income (loss)
Accumulated other comprehensive (loss) income, beginning balance	(1,939,979)	(1,902,513)	(1,926,826)	(1,921,905)
Other comprehensive income	(8,087)	(49,410)	(21,240)	(30,018)
Total other comprehensive income (loss), net of applicable taxes:	(8,087)	(49,410)	(21,240)	(30,018)
Accumulated other comprehensive (loss) income, ending balance	(1,948,066)	(1,951,923)	(1,948,066)	(1,951,923)
Net Minimum Pension Liability
Other comprehensive income (loss)
Accumulated other comprehensive (loss) income, beginning balance	33,566	26,803	33,566	26,803
Other comprehensive income	0	0	0	0
Total other comprehensive income (loss), net of applicable taxes:	0	0	0	0
Accumulated other comprehensive (loss) income, ending balance	33,566	26,803	33,566	26,803
Accumulated Other Comprehensive loss, net
Other comprehensive income (loss)
Accumulated other comprehensive (loss) income, beginning balance	(1,906,413)	(1,875,710)	(1,893,260)	(1,895,102)
Other comprehensive income	(8,087)	(49,410)	(21,240)	(30,018)
Total other comprehensive income (loss), net of applicable taxes:	(8,087)	(49,410)	(21,240)	(30,018)
Accumulated other comprehensive (loss) income, ending balance	$ (1,914,500)	$ (1,925,120)	$ (1,914,500)	$ (1,925,120)