Borrowings from Officer (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Feb. 04, 2016	Feb. 05, 2015	Dec. 31, 2014
Borrowing from Officer
Loan payable to officer	$ 1,530,000			$ 1,530,000
Accrued interest, related party	76,000			$ 76,000
G. Ward Paxton, chief executive officer | Promissory note
Borrowing from Officer
Maximum borrowing capacity	$ 2,200,000		$ 2,200,000
Finance charge basis	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	$ 76,500
G. Ward Paxton, chief executive officer | Promissory note | Subsequent event
Borrowing from Officer
Maximum borrowing capacity		$ 2,200,000