Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Statement of Cash Flows [Abstract]
Net income	$ 1,958	$ 1,688
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,053	9,749
Stock-based compensation	1,050	453
Straight-line rent receivable	(980)	(405)
Straight-line rent liability	27	0
Provision for bad debts, net of recoveries	67	103
Reduction in contingent purchase price	(5)	(974)
Changes in operating assets and liabilities:
Other assets	(636)	(1,284)
Accounts payable and accrued liabilities	(404)	1,732
Other liabilities	1,234	(262)
Net cash provided by operating activities	15,364	10,800
INVESTING ACTIVITIES
Acquisitions of real estate	(93,442)	(58,249)
Funding of notes receivable	(5,000)	(12,406)
Proceeds from the repayment of notes receivable	296	0
Capital expenditures on existing real estate properties	(545)	(1,123)
Net cash used in investing activities	(98,691)	(71,778)
FINANCING ACTIVITIES
Net repayments on revolving credit facility	(51,000)	(12,000)
Term loan borrowings	60,000	0
Dividends paid	(17,288)	(12,782)
Net proceeds from issuance of common stock	109,168	86,805
Equity issuance costs	(465)	(680)
Debt issuance costs	(784)	(641)
Settlement of contingent purchase price	(393)	0
Net cash provided by financing activities	99,238	60,702
Increase (decrease) in cash and cash equivalents	15,911	(276)
Cash and cash equivalents, beginning of period	1,568	2,018
Cash and cash equivalents, end of period	17,479	1,742
Supplemental Cash Flow Information:
Interest paid	2,390	504
Invoices accrued for construction, tenant improvement and other capitalized costs	3	145
Reclassification between accounts and notes receivable	615	0
Reclassification of Registration Statement Costs Incurred In Prior Year to Equity Issuance Costs	148	0
Conversion of mortgage note upon acquisition of real estate property	0	12,500
Decrease in fair value of cash flow hedges	$ (672)	$ 0