Subsequent Events (Detail Textuals) (USD $) In Thousands, except Share data, unless otherwise specified			12 Months Ended		2 Months Ended	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Stock Options	Dec. 31, 2011 Stock Options	Feb. 28, 2013 Subsequent Event	Mar. 31, 2013 Subsequent Event Stock Options Director
Subsequent Event [Line Items]
Number of options elected to exercise			80,000	78,000		15,000
Exercise price			$ 3.21	$ 2.05		$ 4.70
Number of shares repurchased					11,987
Value of shares repurchased	$ 1,765	$ 2,210			$ 104