Per Share Amounts (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Weighted Average Number of Shares Outstanding, Basic (in shares)	4,612,000	4,607,000	4,612,000	4,602,000
Weighted Average Number of Shares Outstanding, Diluted (in shares)	4,640,000	4,613,000	4,639,000	4,610,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	310,000	155,000	310,000	155,000