Organization and Summary of Significant Accounting Policies - Additional Disclosures (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Jan. 30, 2014
Impairment of Real Estate	$ 0	$ 0		$ 0	$ 0
Proceeds from Issuance of Common Stock, Net of Common Stock Repurchase Payments			$ 75,800,000
Restricted cash	134,625			134,625		$ 282,501
Noncontrolling interest in subsidiary	1,922,769			1,922,769		2,342,007
Estimated future capital contributions to unconsolidated joint ventures	18,900,000			18,900,000
Impairments related to investment in unconsolidated joint ventures	0	$ 0		0	$ 0
Allowance for doubtful contracts and accounts receivable	0			0		0
Deferred tax asset	$ 5,840,516		$ 1,400,000	$ 5,840,516		$ 5,840,516	$ 1,500,000
Typical Ownership Threshold [Member]
Equity Method Investment, Ownership Percentage	50.00%			50.00%