Loan Payable to Officer (Details) - USD ($)	9 Months Ended
	Sep. 30, 2015	Feb. 05, 2015	Feb. 06, 2014
Borrowing from Officer
Loan payable to officer	$ 1,530,000
G. Ward Paxton, chief executive officer | Promissory note
Borrowing from Officer
Maximum borrowing capacity	$ 2,200,000	$ 2,200,000	$ 2,200,000
Floating rate base	prime rate
Percentage points added in interest rate	1.00%
Interest rate (as a percent)	5.00%
Loan payable to officer	$ 1,530,000
Accrued interest, related party	$ 134,000