Summary of Unsecured Lines of Credit (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Lines of credit	$ 23,997,000	$ 17,497,000
Line of credit facility maximum borrowing capacity	47,500,000	47,500,000
Bankers Trust Operating [Member]
Lines of credit	0
3.47% Interest Bearing Line of Credit [Member] | Bankers Trust [Member]
Lines of credit	23,997,000
Line of credit facility maximum borrowing capacity	$ 40,000,000
Debt instrument, maturity date	May 31, 2017
Variable / Fixed	Variable
Reset Frequency	Monthly
Line of credit facility, interest rate during period	3.47%
3.72% Interest Bearing Line of Credit [Member] | Bankers Trust Operating [Member]
Line of credit facility maximum borrowing capacity	$ 7,500,000
Debt instrument, maturity date	Oct. 31, 2016
Variable / Fixed	Variable
Reset Frequency	Monthly
Line of credit facility, interest rate during period	3.72%
2.90% Interest Bearing Line of Credit [Member] | Bankers Trust [Member]
Lines of credit		12,497,000
Line of credit facility maximum borrowing capacity		$ 37,500,000
Debt instrument, maturity date		May 31, 2017
Variable / Fixed		Variable
Reset Frequency		Monthly
Line of credit facility, interest rate during period		2.90%
3.5% Interest Bearing Line of Credit [Member] | Bankers Trust Operating [Member]
Line of credit facility maximum borrowing capacity		$ 5,000,000
Debt instrument, maturity date		Mar. 31, 2016
Variable / Fixed		Variable
Reset Frequency		Monthly
Line of credit facility, interest rate during period		3.50%
3.4% Interest Bearing Line of Credit [Member] | Five Points Bank operating [Member]
Lines of credit		$ 5,000,000
Line of credit facility maximum borrowing capacity		$ 5,000,000
Debt instrument, maturity date		Mar. 31, 2016
Variable / Fixed		Variable
Reset Frequency		Monthly
Line of credit facility, interest rate during period		3.40%