Securities Authorized for Issuance Under Equity Compensation Plans (Details) (USD $)	3 Months Ended
	Mar. 31, 2013
Outstanding options under the company's stock option plan
Options Outstanding	481,400
Exercisable Options	447,680
Exercise Price	$ 0.98
Weighted Average Remaining Life	2 years 2 months 12 days
Non Plan [Member]
Outstanding options under the company's stock option plan
Date Granted	Mar. 25, 2009
Options Outstanding	115,000
Exercisable Options	115,000
Exercise Price	$ 0.55
Expiration Date	Mar. 24, 2014
Weighted Average Remaining Life	1 year
2008 ISO [Member]
Outstanding options under the company's stock option plan
Date Granted	Aug. 25, 2008
Options Outstanding	141,400
Exercisable Options	107,680
Exercise Price	$ 0.97
Expiration Date	Aug. 24, 2013
Weighted Average Remaining Life	4 months 24 days
2002NQ [Member]
Outstanding options under the company's stock option plan
Date Granted	Jun. 20, 2003
Options Outstanding	30,000
Exercisable Options	30,000
Exercise Price	$ 1.03
Expiration Date	Jun. 19, 2013
Weighted Average Remaining Life	2 months 12 days
2002NQ 1 [Member]
Outstanding options under the company's stock option plan
Date Granted	May 25, 2004
Options Outstanding	30,000
Exercisable Options	30,000
Exercise Price	$ 1.46
Expiration Date	May 24, 2014
Weighted Average Remaining Life	1 year 2 months 12 days
2002NQ 2 [Member]
Outstanding options under the company's stock option plan
Date Granted	Apr. 03, 2006
Options Outstanding	40,000
Exercisable Options	40,000
Exercise Price	$ 1.08
Expiration Date	Apr. 02, 2016
Weighted Average Remaining Life	3 years 1 month 6 days
2002NQ 3 [Member]
Outstanding options under the company's stock option plan
Date Granted	Dec. 17, 2007
Options Outstanding	50,000
Exercisable Options	50,000
Exercise Price	$ 1.32
Expiration Date	Dec. 16, 2017
Weighted Average Remaining Life	4 years 9 months 18 days
2008NQ [Member]
Outstanding options under the company's stock option plan
Date Granted	Jan. 11, 2009
Options Outstanding	50,000
Exercisable Options	50,000
Exercise Price	$ 0.69
Expiration Date	Jan. 10, 2019
Weighted Average Remaining Life	5 years 10 months 24 days
2008NQ 1 [Member]
Outstanding options under the company's stock option plan
Date Granted	Apr. 26, 2010
Options Outstanding	25,000
Exercisable Options	25,000
Exercise Price	$ 2.07
Expiration Date	Apr. 25, 2020
Weighted Average Remaining Life	7 years 2 months 12 days