Schedule II - Valuation and Qualifying Accounts (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Allowance for Doubtful Accounts
Balance at beginning of year	$ 150,000	$ 140,000
Additions Charged to Expenses	11,248	17,358
Deductions	11,248	7,358
Balance at end of year	150,000	150,000
Inventory Valuation Reserve
Balance at beginning of year	550,000	549,600
Additions Charged to Expenses	121,380	186,141
Deductions	107,380	185,141
Balance at end of year	$ 564,000	$ 550,000