Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Allowance For Doubtful Accounts Receivable, Current (in dollars)	$ 49,000	$ 50,000
Inventory Valuation Reserves	$ 449,000	$ 432,000
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	28,842,788	26,032,930
Common stock, shares outstanding	28,842,788	26,032,930