Description of Business (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Jun. 23, 2015	Feb. 05, 2015	Dec. 31, 2014	Feb. 06, 2014	Dec. 31, 2013
Description of Business
Cash and cash equivalents	$ 1,081,000	$ 1,376,000	$ 1,081,000	$ 1,376,000			$ 1,006,000		$ 1,139,000
Net income (loss)	432,000	$ (147,000)	$ 746,000	$ 145,000
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	374,000		$ 374,000
Maximum borrowing capacity	625,000		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			$ 2,200,000		$ 2,200,000