Organization and Summary of Significant Accounting Policies, Change in Accounting Principle (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Effect of Changes in Accounting Principle to Balance Sheets [Abstract]
Prepaid expenses and other	$ 228,400	$ 415,900
Total assets	181,025,000	197,670,500
Notes payable and accrued interest	107,621,600	129,486,200
Total liabilities and stockholders' equity	$ 181,025,000	197,670,500
As Reported Previously [Member]
Effect of Changes in Accounting Principle to Balance Sheets [Abstract]
Prepaid expenses and other		4,520,300
Total assets		201,774,900
Notes payable and accrued interest		133,590,600
Total liabilities and stockholders' equity		201,774,900
As Adjusted [Member]
Effect of Changes in Accounting Principle to Balance Sheets [Abstract]
Prepaid expenses and other		415,900
Total assets		197,670,500
Notes payable and accrued interest		129,486,200
Total liabilities and stockholders' equity		197,670,500
Effect of Change [Member]
Effect of Changes in Accounting Principle to Balance Sheets [Abstract]
Prepaid expenses and other		(4,104,400)
Total assets		(4,104,400)
Notes payable and accrued interest		(4,104,400)
Total liabilities and stockholders' equity		$ (4,104,400)