CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
CONDENSED CONSOLIDATED BALANCE SHEETS
Allowance for doubtful accounts (in dollars)	$ 401	$ 1,094
Accumulated amortization, lease intangibles (in dollars)	8,762	8,585
Unamortized Debt Issuance Expense	6,021	4,930
Accumulated amortization of below-market lease	$ 6,159	$ 5,608
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common Stock, shares issued	36,698,420	34,240,815
Common Stock, shares outstanding	34,459,728	34,240,815

The valuation allowance as of the balance sheet date to reduce the gross amount of receivables to estimated net realizable value, which would be presented in parentheses on the face of the balance sheet.

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Amount of accumulated amortization of leases acquired as part of a real property acquisition at below market lease rate with a finite life.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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