Condensed Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Accounts receivable, net of allowance for doubtful accounts (in dollars)	$ 58,000	$ 60,000
Inventory, net of allowance for slow moving and obsolete inventory (in dollars)	$ 398,000	$ 261,000
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	22,166,336	21,833,003
Common stock, shares outstanding	22,166,336	21,833,003