Related Party Transactions (Narrative) (Details) - USD ($)	3 Months Ended		4 Months Ended	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2003	Dec. 31, 2015
Related Party Transaction [Line Items]
Debt Payable to Related Parties	$ 1,721,000			$ 1,721,000
Proceeds from debt payable to related party	404,000	$ 524,000
Cash paid for interest	$ 93,000	$ 22,000
Street Capital [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Description of Transaction	Beginning in 2004, HGI and Street Capital entered into successive annual management services agreements (collectively, the “Agreement”). Under the terms of the Agreement, HGI agreed to pay Street Capital for ongoing management services provided to HGI by Street Capital personnel. Refer to Note 14 of the Annual Report on Form 10-K filed with the SEC on March 17, 2016 for further detail on the Agreement. In 2013, Street Capital announced its plan to dispose of its interest in HGI, and on March 20, 2014, Street Capital declared a dividend in kind, consisting of Street Capital’s distribution of its majority interest in HGI to Street Capital shareholders. The dividend was paid on April 30, 2014 to shareholders of record as of April 1, 2014. Following this disposition, the Company and Street Capital entered into a replacement management services agreement (the “Services Agreement”). Under the terms of the Services Agreement, Street Capital remained as external manager and continued to provide the same services, at similar rates, until the Services Agreement was terminated effective August 31, 2015, as described more fully in the Current Report on Form 8-K filed with the SEC on September 1, 2015.
Executive Officers [Member]
Related Party Transaction [Line Items]
Proceeds from debt payable to related party	$ 400,000
Related Party Debt, Interest rate	10.00%
Related party debt, maturity period	90 days
Cash paid for interest	$ 8,000
Street Capital Loan [Member]
Related Party Transaction [Line Items]
Related Party Accrued Interest	500,000
Debt Payable to Related Parties	$ 1,700,000			$ 1,700,000
Related Party Debt, Interest rate	5.50%		10.00%	5.50%