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Common Stock Closing Share Price.

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Related Party Transactions (Details Textual) - USD ($) $ / shares in Units, $ in Thousands					1 Months Ended							3 Months Ended				6 Months Ended	9 Months Ended	12 Months Ended
	Jul. 02, 2015	May. 14, 2015	Apr. 03, 2014	Apr. 02, 2014	Nov. 18, 2015	May. 31, 2015	Apr. 30, 2015	Mar. 26, 2015	Mar. 16, 2015	Feb. 18, 2015	Oct. 21, 2013	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Nov. 30, 2015	Jan. 02, 2014
Related Party Transaction [Line Items]
Line of credit outstanding																						$ 7,600
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value																		$ 17,300
Acquisition And Disposition Expenses																			$ 5,700
Sales Price Percentage											1.50%
Selling Commission Percentage											50.00%							50.00%
Percentage Exceed In Contract Sales Price											6.00%
Percentage Exceed Relates To Operating Expenses																		2.00%		2.00%
Percentage Determined For Net Income																		25.00%
Oversight Fee Percentage																		1.00%
Related Party Transaction Acquisition Fee Percentage																				2.50%
Base Management Fee Expense																		$ 3,300	$ 700
Preferred Stock, Shares Issued												0				0		0	0
Preferred Stock, Par Or Stated Value Per Share (in dollars per share)												$ 0.01				$ 0.01		$ 0.01	$ 0.01
Due From Affiliates Excluding Former Advisor												$ 900				$ 900		$ 900	$ 600
Compensation Percent Of Stockholders Equity												0.25%				0.25%		0.25%
Management Agreement, Agreement Termination Minimum Stockholders Equity												$ 250,000				$ 250,000		$ 250,000
Compensation Incentive Fee Product Percentage												20.00%				20.00%		20.00%
Compensation Incentive Fee Base Percentage												8.00%				8.00%		8.00%
Due to Affiliates Excluding Manager and Former Advisor												$ 100				$ 100		$ 100	300
Incentive Fee Expense													$ 700						150
Management Fee Expense																		$ 900	1,000
Long Term Incentive Plan Units Issued		67,837								10,896
Share Price												$ 11.85				$ 11.85		$ 11.85
Long Term Incentive Plan Units Vested							59,854
Business Acquisition Indirect Ownership, Amount																					$ 2,900
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest				100.00%														100.00%
Due to Related Parties												$ 1,351				$ 1,351		$ 1,351	$ 1,643
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	283,390				77,497
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures, Total																300
General and Administrative Expense [Member]
Related Party Transaction [Line Items]
Due to Related Parties												$ 1,180				$ 1,180		1,180
Allocated Share-based Compensation Expense																		$ 1,000
Long-term Incentive Plan Units [Member]
Related Party Transaction [Line Items]
Common Stock Closing Share Price																		$ 11.85
Long Term Incentive Plan Units Granted																		179,562	179,562
Share Price												$ 11.85				$ 11.85		$ 11.85
Stock Issued During Period, Shares, Share-based Compensation, Gross												95,649						59,077
Partners' Capital Account, Units, Sale of Units, Total																		108,119
October 2014 Follow-On Offering [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party																			$ 200
Manager [Member]
Related Party Transaction [Line Items]
Incentive Fee Expense														$ 900
Due to Related Parties												$ 1,351				$ 1,351		$ 1,351	463
Villas at Oak Crest [Member]
Related Party Transaction [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value																		300
Park Kingston Phase I Units [Member]
Related Party Transaction [Line Items]
Business Acquisition Indirect Ownership, Amount						$ 6,500			$ 6,300
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest									46.95%
Fox Hill [Member]
Related Party Transaction [Line Items]
Business Acquisition Indirect Ownership, Amount						$ 1,100		$ 10,200
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest								85.27%
North Park Towers [Member]
Related Party Transaction [Line Items]
Management Fee Expense																		100	$ 100
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest			100.00%
Lansbrook [Member]
Related Party Transaction [Line Items]
Business Acquisition Indirect Ownership, Amount												$ 3,700				$ 3,700		$ 3,700
Bluerock Multifamily Advisor, LLC [Member]
Related Party Transaction [Line Items]
Reimbursement Of Organizational And Offering Costs															$ 500
Advisory Agreement [Member]
Related Party Transaction [Line Items]
Sales Price Percentage											1.50%
Preferred Stock, Shares Issued																			1,000
Preferred Stock, Par Or Stated Value Per Share (in dollars per share)																			$ 0.01
Preferred Stock, Dividend Rate, Percentage																			8.00%
Fund II [Member]
Related Party Transaction [Line Items]
Repayments of Related Party Debt																	$ 300
Former Advisor [Member]
Related Party Transaction [Line Items]
Acquisition And Disposition Expenses																			$ 2,200
Common Class A [Member]
Related Party Transaction [Line Items]
Compensation Percent Of Stockholders Equity												1.50%				1.50%		1.50%
Minimum [Member]
Related Party Transaction [Line Items]
Percentage Of Financing Fees Receivable											0.25%
Selling Commission Percentage																		50.00%
Minimum [Member] \| Park Kingston Phase I Units [Member]
Related Party Transaction [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest						46.95%
Minimum [Member] \| Fox Hill [Member]
Related Party Transaction [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest						85.27%
Minimum [Member] \| Lansbrook [Member]
Related Party Transaction [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest																		76.80%
Maximum [Member]
Related Party Transaction [Line Items]
Percentage Of Financing Fees Receivable											1.00%
Maximum [Member] \| Park Kingston Phase I Units [Member]
Related Party Transaction [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest						96.00%
Maximum [Member] \| Fox Hill [Member]
Related Party Transaction [Line Items]
Business Acquisition Indirect Ownership, Amount								$ 38,150
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest						94.62%
Maximum [Member] \| Lansbrook [Member]
Related Party Transaction [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest																		90.00%