XML 91 R72.htm IDEA: XBRL DOCUMENT v3.3.1.900
Stock-Based Compensation Plans (Schedule of Share-Based Compensation Expense) (Details) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation $ 622,503 $ 760,894 $ 670,934
Employee      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation 456,749 660,963 614,818
Nonemployee      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation $ 165,754 $ 99,931 $ 56,116