Common Stock Dividend (Details) (USD $)	1 Months Ended
	Mar. 26, 2013	Mar. 31, 2013
Common Stock Dividend [Abstract]
Percentage of stock dividend declared on common stocks outstanding (in hundredths)	1.00%
Additional number of shares issued to shareholders (in shares)	142,157
Amount transferred from retained earnings to common stocks based on closing price on declaration date		$ 619,000
Closing price of common stock on declaration date (in dollars per share)		$ 4.35