Stock-Based Compensation (Non-Vested Employee Stock Options) (Details) - Stock Options [Member] - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option Shares, Nonvested at beginning of period		335,000	682,500
Option Shares, Granted
Option Shares, Vested		(331,250)	(335,000)
Option Shares, Forfeited		(3,750)	(12,500)
Option Shares, Nonvested at end of period			335,000
Nonvested, Weighted-Average Grant Date Fair Value beginning of period		$ 2.55	$ 2.55
Granted, Weighted-Average Grant Date Fair Value
Vested, Weighted-Average Grant Date Fair Value		2.55	2.55
Forfeited, Weighted-Average Grant Date Fair Value		2.55	2.55
Nonvested, Weighted-Average Grant Date Fair Value end of period			$ 2.55