XML 45 R20.htm IDEA: XBRL DOCUMENT v2.4.0.6
Summary of Significant Accounting Policies (Details Textual)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Summary of Significant Accounting Policies (Textual) [Abstract]        
Number of stock options outstanding having antidilutive effect 105,000 228,000 105,000 228,000