Valuation And Qualifying Accounts (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Allowance For Doubtful Accounts And Returns [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 379,817	$ 93,478
Additions Charged to Cost and Expenses	(18,467)	292,690
Deductions	0	(6,351)
Balance at the End of Year	361,350	379,817
Allowance For Inventories Valuation [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	272,614	19,971
Additions Charged to Cost and Expenses	3,948,726	283,441
Deductions	(319,568)	(30,798)
Balance at the End of Year	$ 3,901,772	$ 272,614