Weighted Average Common Shares Denominator Used in Basic and Diluted Earnings per Share Computation (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Weighted Average Number of Shares Outstanding [Line Items]
Weighted average common stock outstanding	1,653,746	1,652,318	1,653,746	1,652,318
Average treasury stock	(54,100)	(54,100)	(54,100)	(54,100)
Weighted average common stock and common stock equivalents used to calculate basic earnings per share	1,599,646	1,598,218	1,599,646	1,598,218
Additional common stock equivalents (nonvested stock) used to calculate diluted earnings per share	209
Additional common stock equivalents (stock options) used to calculate diluted earnings per share	1,825	987	716	1,521
Weighted average common stock and common stock equivalents used to calculate diluted earnings per share	1,601,680	1,599,205	1,600,362	1,599,739

Nonvested equity-based payment awards that contain forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) that result in incremental common shares.

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+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References+ Details

- Definition

This element represents the weighted average total number of shares issued throughout the period including the first (beginning balance outstanding) and last (ending balance outstanding) day of the period before considering any reductions (for instance, shares held in treasury) to arrive at the weighted average number of shares outstanding. Weighted average relates to the portion of time within a reporting period that common shares have been issued and outstanding to the total time in that period. Such concept is used in determining the weighted average number of shares outstanding for purposes of calculating earnings per share (basic).

+ References

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+ Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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-Glossary Weighted-Average Number of Common Shares Outstanding

-URI http://asc.fasb.org/extlink&oid=6528421

+ Details

DIMECO INC 10-Q/A