Earnings per share (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Abstract]

Weighted average number of shares used in computing earnings per share

	Three Months Ended								Six Months Ended
	June 30, 2012				June 30, 2011				June 30, 2012				June 30, 2011
(Unaudited)	Average Shares		Per  Share Amount		Average Shares		Per  share Amount		Average Shares		Per  Share Amount		Average Shares		Per  Share Amount
Basic earnings per share		2,610,856	$	0.04		2,605,856	$	0.03		2,610,856	$	0.08		2,605,856	$	0.08
Effect of dilutive securities:
Stock options		3,021				—				1,960				—
Diluted earnings per share		2,613,877	$	0.04		2,605,856	$	0.03		2,612,816	$	0.08		2,605,856	$	0.08