Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended							9 Months Ended	12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Dec. 31, 2011	Dec. 31, 2012
Income Taxes Details
Taxes currently payable								$ 483	$ 7
Deferred income taxes								(249)	371
Income tax expense	$ 119	$ 125	$ 194	$ (60)	$ 82	$ 16	$ 136	$ 234	$ 378