Common Stock Repurchase (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Jun. 05, 2013	Dec. 31, 2013	Dec. 31, 2015	Apr. 22, 2015	Dec. 31, 2014	Dec. 31, 2012
Class of Stock [Line Items]
Common stock, shares outstanding			16,064,435		16,018,734
Common Stock [Member]
Class of Stock [Line Items]
Stock repurchased and retired during period, shares	1,440,592	1,440,592
Common stock shares repurchased, percent	8.27%
Share price	$ 10.95
Common stock, shares outstanding	15,969,464	15,976,204	16,064,435		16,018,734	17,403,882
Stock repurchase program, authorized amount				$ 2,000
Stock repurchase program, number of shares repurchased			0