Net Income / (Loss) Per Common Share (Details) - shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share Basic And Diluted [Line Items]
Weighted Average Number Diluted Shares Outstanding Adjustment	4,167,000	4,570,000
Employee Stock Option [Member]
Earnings Per Share Basic And Diluted [Line Items]
Weighted Average Number Diluted Shares Outstanding Adjustment	2,107,000	2,185,000
Warrant [Member]
Earnings Per Share Basic And Diluted [Line Items]
Weighted Average Number Diluted Shares Outstanding Adjustment	2,060,000	2,385,000