Valuation And Qualifying Accounts (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Allowance For Doubtful Accounts And Returns [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 93,478	$ 131,464
Additions Charged to Cost and Expenses	292,690	(9,463)
Deductions	(6,351)	(28,523)
Balance at the End of Year	379,817	93,478
Allowance For Inventories Valuation [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	19,971	59,634
Additions Charged to Cost and Expenses	283,441	42,258
Deductions	(30,798)	(81,921)
Balance at the End of Year	$ 272,614	$ 19,971