Valuation and Qualifying Accounts (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Inventory Valuation Reserve [Member]
Balance Beginning of Year	$ 449,098	$ 260,897
Charges to Costs and Expenses	174,143	203,996
Deductions	(16,737)	(15,795)
Balance End of Year	606,504	449,098
Allowance for Doubtful Accounts [Member]
Balance Beginning of Year	1,654,290	608,356
Charges to Costs and Expenses	(80,729)	216,919
Deductions	(485,690)	829,015
Balance End of Year	1,087,871	1,654,290
Balance Beginning of Year	2,103,388	869,253
Charges to Costs and Expenses	93,414	420,915
Deductions	(502,427)	813,220
Balance End of Year	$ 1,694,375	$ 2,103,388