CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net loss attributable to stockholders	$ (6,339,000)	$ (3,419,000)	$ (1,762,000)
Adjustments to reconcile net loss attributable to stockholders to net cash provided by operating activities:
Depreciation	6,368,000	2,609,000	500,000
Amortization of intangibles assets	1,729,000	1,434,000	540,000
Amortization of deferred financing costs	889,000	502,000	80,000
Accretion of below-market lease liabilities and amortization of above-market lease assets, net	(433,000)	(239,000)	(75,000)
Net loss (income) attributable to non-controlling interests	(33,000)	154,000	(109,000)
Share-based compensation	180,000	218,000	5,000
Loss on derivative instrument	14,000	3,000	0
Contribution from Non-Controlling Interest Holder in Lieu of Acquisition Fees	100,000	0	0
Changes in assets and liabilities:
Prepaid expenses and other assets	(3,320,000)	(1,160,000)	(652,000)
Accounts payable and accrued expenses	3,236,000	136,000	394,000
Due from affiliated entities		0	(357,000)
Deferred rent and other liabilities	639,000	25,000	202,000
Net cash provided by (used in) operating activities	3,030,000	263,000	(1,234,000)
Cash flows from investing activities:
Investment in real estate and other assets	(144,750,000)	(25,276,000)	(30,729,000)
Capital expenditures	(1,003,000)	(460,000)	0
Net cash used in investing activities	(145,753,000)	(25,736,000)	(30,729,000)
Cash flows from financing activities:
Proceeds from notes payable		0	8,900,000
Payments on notes payable	(5,933,000)	0	(2,967,000)
Proceeds from mortgage notes payable	31,565,000	21,300,000	0
Payments on mortgage notes payable	(434,000)	(14,085,000)	(136,000)
Proceeds from revolving credit facility	48,495,000	0	0
Payments on revolving credit facility	(28,500,000)	0	0
Proceeds from issuance of common stock	127,962,000	42,545,000	2,875,000
Repurchases of common stock	(424,000)	0	0
Proceeds from issuance of convertible preferred stock, net		0	16,954,000
Payments of offering costs and fees related to stock issuances	(13,618,000)	(10,050,000)	(3,655,000)
Payments of deferred financing costs	(4,582,000)	(1,992,000)	(1,328,000)
Distributions paid	(3,445,000)	(2,025,000)	(684,000)
Payments to affiliate	33,000	(19,000)	113,000
Distributions to non-controlling interest holders	(481,000)	(909,000)	0
Contributions from non-controlling interest holders	0	0	13,000,000
Payments to non-controlling interest holder	(12,000,000)	0	0
Restricted cash	(783,000)	581,000	(760,000)
Net cash provided by financing activities	137,855,000	35,346,000	32,312,000
Net (decrease) increase in cash and cash equivalents	(4,868,000)	9,873,000	349,000
Cash and cash equivalents, beginning of period	10,222,000	349,000	0
Cash and cash equivalents, end of period	5,354,000	10,222,000	349,000
Supplemental Disclosures:
Cash paid for interest	4,016,000	2,541,000	788,000
Cash paid for income taxes	15,000	12,000
Non-Cash Investing and Financing Activities:
Mortgage notes payable used to acquire investments in real estate	79,188,000	32,650,000	21,300,000
Liabilities assumed in acquisition of real estate	4,760,000	0	0
Non-controlling interest issued to seller	380,000	0	0
Debt assumed in real estate acquisitions	0	0	14,221,000
Conversion of preferred stock to common stock		16,954,000
Common stock issued through distribution reinvestment plan			0
Reclassification of offering costs	0	0	954,000
Preferred stock
Non-Cash Investing and Financing Activities:
Common stock issued through distribution reinvestment plan	$ 3,258,000	$ 419,000