Subsequent Events (Details) (USD $)	3 Months Ended			1 Months Ended
	Mar. 31, 2013	Mar. 31, 2013 Loan Commitments Maturities Ranging from 2013 to 2014 [Member]	Mar. 31, 2012 Loan Commitments Maturities Ranging from 2013 to 2014 [Member]	Jun. 30, 2013 Dividend declared	May 31, 2013 Dividend declared	Apr. 30, 2013 Dividend declared	Apr. 30, 2013 Subsequent Event	Apr. 30, 2013 Subsequent Event Loan Commitments Maturities Ranging from 2013 to 2014 [Member]
Subsequent Events
Cash dividend per common share				$ 0.155	$ 0.155	$ 0.155
Investment Commitment
2013 Funding	$ 6,193,000						$ 1,398,000
Funded loan commitments		63,000	1,034,000					60,000
Remaining Commitment	54,031,000						52,633,000
Remaining loan commitments		$ 1,316,000						$ 1,256,000