Litigation Funding Agreement (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Litigation Funding Agreement [Member]
Legal expenses incurred attributable to Litigation Funding Agreement [Abstract]
Legal expense	$ 470,000	$ 681,000
R. A. Bianco [Member]
Litigation Funding Commitment [Abstract]
Litigation fund	$ 7,000,000
R. A. Bianco [Member] | Minimum [Member]
Litigation Funding Commitment [Abstract]
Percentage of recovery sharing ratio	30.00%
R. A. Bianco [Member] | Maximum [Member]
Litigation Funding Commitment [Abstract]
Percentage of recovery sharing ratio	45.00%