Condensed Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2011	Dec. 31, 2010
CURRENT ASSETS:
Trade receivables, less allowance	$ 54,000	$ 60,000
INTANGIBLE ASSETS, less accumulated amortization	$ 401,941	$ 376,983
STOCKHOLDERS' EQUITY:
Preferred stock, par value	$ 0.10	$ 0.10
Preferred stock, shares authorized	250,000	250,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	4,750,000	4,750,000
Common stock, shares issued	1,983,587	1,973,357
Common stock, shares outstanding	1,983,587	1,973,357