Stock-Based Compensation - Schedule of Non-vested Restricted Stock Activity (Details) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Number of Non-vested Shares, Beginning of Year	430,000	392,000	575,000
Number of Non-vested Shares, Granted	434,000	240,000	271,000
Number of Non-vested Shares, Vested	(266,000)	(194,000)	(272,000)
Number of Non-vested Shares, Forfeited	(30,000)	(8,000)	(182,000)
Number of Non-vested Shares, End of Period	568,000	430,000	392,000
Weighted- Average Grant Date Fair Value, Non-vested, Beginning of Year	$ 5.91	$ 5.45	$ 5.79
Weighted- Average Grant Date Fair Value, Granted	7.02	6.26	4.80
Weighted- Average Grant Date Fair Value, Vested	6.07	5.42	5.34
Weighted- Average Grant Date Fair Value, Forfeited	6.54	5.69	5.72
Weighted- Average Grant Date Fair Value, Non-vested, End of Period	$ 6.65	$ 5.91	$ 5.45