Description of Business (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011	Dec. 31, 2010
Description of Business
Cash and cash equivalents	$ 475,000	$ 322,000	$ 475,000	$ 322,000	$ 308,000	$ 540,000
Net income (loss)	48,000	121,000	(92,000)	(755,000)
Period during which the entity expects to have sufficient cash resources to finance its operations and capital expenditures			12 months
Current Line of Credit
Description of Business
Funding available	159,000		159,000
Maximum borrowing capacity	625,000		625,000
Promissory note | G. Ward Paxton, chief executive officer
Description of Business
Funding available	670,000		670,000
Maximum borrowing capacity	$ 2,200,000		$ 2,200,000