Income Taxes (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes (Textual) [Abstract]
Nondeductible expenses and other	(0.61%)	0.54%	0.44%
Liability for accrued interest	$ 52,000	$ 17,000	$ 15,000
Liability for accrued penalties	11,000	4,000	6,000
Impact of effective tax rate for state income taxes	30,000	10,000	14,000
Change in total amount of unrecognized tax benefits	may change significantly within the next 12 months
Federal tax benefit for state income taxes	22,000	4,000	7,000
Federal [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry-forwards	0
Income tax years	tax years ended on or after December 31, 2009
State [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry-forwards	$ 5,300,000
Income tax years	tax years ended on or after December 31, 2008
State [Member] | Maximum [Member]
Operating Loss Carryforwards [Line Items]
State NOL's restrictions and expire period	20 years
State [Member] | Minimum [Member]
Operating Loss Carryforwards [Line Items]
State NOL's restrictions and expire period	1 year