Basis of Presentation, Accounting Policies and Going Concern (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Allowance for loan and lease losses, write-offs	$ 0
Allowance for doubtful accounts receivable	0
Cash and cash equivalents	$ 139,262,000	$ 82,387,000	$ 84,155,000	$ 61,653,000