Shareholders' Equity (Detail Textuals 1) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	May 14, 2012
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of shares repurchased under exercise of options		(22)
Exercise of Stock Options		$ 384,000
Cash dividend (in dollars per share)			$ 0.15
Dividends, Cash	358,000	358,000
Management | Stock Options
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of options elected to exercise		71,000
Number of shares repurchased under exercise of options		2,500
Net shares issued out of treasury stock		68,500
Exercise of Stock Options		215,000
Tax benefit associated with option exercised		152,000
Option Holder | Stock Options
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of options elected to exercise	9,000
Exercise of Stock Options	$ 18,000