Stock Options (Details 2) - shares	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise prices of options outstanding	146,305	147,705
$2.70 - $9.99 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise prices of options outstanding	19,189	13,189
$10.00 - $14.99 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise prices of options outstanding	103,616	103,616
$15.00 - $19.99 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise prices of options outstanding	23,500	23,500
$20.00 - $30.55 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise prices of options outstanding		7,400