XML 55 R83.htm IDEA: XBRL DOCUMENT v2.4.0.6
Earnings Per Common Share (Detail) (USD $)
 3 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
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Mar. 31, 2010
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Basic:                              
Net income $ 609,000 $ 670,000 $ 656,000 $ 730,000 $ 756,000 $ 770,000 $ 758,000 $ 709,000 $ 655,000 $ 689,000 $ 322,000 $ 399,000 $ 2,665,080 $ 2,993,093 $ 2,064,785
Weighted average common shares outstanding                         2,728,072 2,710,455 2,690,218
Basic net income per share                         $ 0.98 $ 1.10 $ 0.76