Stock-Based Compensation (Stock Options) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2012
Stock-Based Compensation [Abstract]
Option shares, Outstanding at beginning of period	1,391,636		1,429,842
Option Shares, Granted	0		0		1,365,000
Option Shares, Exercised	(64,701)	[1]	(38,206)	[2]	(3,296)	[3]
Option Shares, Cancelled or forfeited	(12,500)		0		(2,500)
Option shares, Outstanding at end of period	1,314,435		1,391,636		1,429,842		70,638
Weighted Average Exercise Price, Beginning Balance	$ 4.97		$ 4.95
Weighted Average Exercise Price, granted	0.00		0.00		$ 5.05
Weighted Average Exercise Price, exercised	4.83	[1]	4.30	[2]	0.91	[3]
Weighted Average Exercise Price, cancelled or forfeited	5.05		0.00		9.00
Weighted Average Exercise Price, Ending Balance	$ 4.98		$ 4.97		$ 4.95		$ 3.03
Weighted Average Remaining Contractual Term	7 years 9 months 7 days		8 years 9 months 7 days		9 years 8 months 27 days		5 years 4 months 24 days
Options Exercisable	979,435		709,136		406,092		56,638
Weighted-Average Exercise Price	$ 4.95		$ 4.90		$ 4.71		$ 3.21

[1] 13,451 options were exercised for cash considerations of $53,709 in 2016. The intrinsic value of the options exercised was $28,337. In addition, 51,250 options were exercised and 14,498 shares were issued through net share settlements in 2016. As a result, there was no cash consideration or intrinsic value for these options.

[2] 6,956 options were exercised for cash considerations of $6,390 in 2015. The intrinsic value of the options exercised was $35,747. In addition, 31,250 options were exercised and 9,820 shares were issued through net share settlement in 2015, as a result there was no cash consideration or intrinsic value for the options.

[3] 3,296 options were exercised for cash consideration of $3,000 in 2014. The intrinsic value of the options exercised was $19,000