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Share-based Compensation Arrangement by Share-based Payment Award, Additional Number of Shares Earned for Each Percentage Actual Exceeds Budgeted Per Year

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Share-based Compensation Arrangement by Share-based Payment Award, Award Eanred, Increments

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Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Date

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Grant Date Fair Value

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Share-based Compensation Arrangement by Share-based Payment Award, Market Based Awards, Market Price Target

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Share-based Compensation Arrangement by Share-based Payment Award, Potential Number of Shares Earned and Issued if Operating Results are Obtained

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Share-based Compensation Arrangement by Share-based Payment Award, Required Percentage of Budgeted Funds from Operations to Achieve Performance Award

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Share-based Compensation Arrangement by Share-based Payment Award, Threshold Consecutive Trading Days

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of noncash expense for share-based payment arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Date the equity-based award expires, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of additional shares authorized for issuance under share-based payment arrangement.

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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The number of shares or units of entity securities issued in the transaction in which equity securities were issued to pay for goods or nonemployee services.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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Stock-Based Compensation (Narrative) (Details) $ / shares in Units, $ in Thousands					1 Months Ended	12 Months Ended
	May 17, 2018 shares	Jun. 28, 2017 USD ($) $ / shares shares	Mar. 11, 2015 $ / shares shares	Mar. 02, 2015 $ / shares employee shares	Mar. 17, 2015 $ / shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($) shares	Jun. 15, 2016 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share awards granted						4,775	21,917	23,191
Vested in period						20,201	50,328	30,879
Unrecognized compensation cost \| $						$ 319
Unrecognized compensation cost recognition period						1 year 8 months 12 days
Stock-based compensation \| $						$ 173	$ 1,026	$ 974
2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares authorized	300,000
Shares available for issuance						482,136
Shares issued to independent directors						24,607	14,936	11,503
Maximum [Member] \| 2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized									761,538
Employees and Officers [Member] \| 2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period						5 years
Members of the Board of Directors [Member] \| 2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period						3 years
Market Based Share Awards [Member] \| 2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost \| $		$ 1,380
Market Based Share Awards [Member] \| Executive Officer [Member] \| 2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized		36,692
Market price target \| $ / shares						$ 11.00
Market price target increments \| $ / shares		$ 1
Award vesting date						Nov. 22, 2019
Trading period used to determine award price		60 days
Market Based Share Awards [Member] \| Executive Officer [Member] \| Minimum [Member] \| 2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Market price target \| $ / shares		$ 11.00
Market Based Share Awards [Member] \| Executive Officer [Member] \| Maximum [Member] \| 2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Market price target \| $ / shares		$ 18.00
Performance Based Share Awards [Member] \| 2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares earned per percentage if actual FFO exceeds budgeted FFO		391
Percentage increment required to earn additional shares		2.00%
Performance Based Share Awards [Member] \| Minimum [Member] \| 2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Required percentage of budgeted FFO to achieve performance award		85.00%
Potential shares earned and issued if operating results are obtained		11,741
Performance Based Share Awards [Member] \| Maximum [Member] \| 2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Required percentage of budgeted FFO to achieve performance award		101.00%
Potential shares earned and issued if operating results are obtained		19,569
Additional shares earned per percentage if actual FFO exceeds budgeted FFO		3,910
Performance Based Share Awards [Member] \| Executive Officer [Member] \| 2016 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share awards granted						0	13,778	21,133
Grant date fair value \| $							$ 122	$ 212
Vested in period							2,550
Vested in period, fair value \| $							$ 22
Warrants [Member] \| Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration date						Mar. 02, 2018
Number of officers granted share awards \| employee				1
Number of shares called by warrant				101,213
Common stock warrants, exercise price \| $ / shares			$ 9.88	$ 9.88	$ 12.48
Expiration period				3 years
Shares purchased with warrants			35,060
Warrants [Member] \| Executive Officer [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units earned, increments					33.33%
Warrants [Member] \| Executive Officer [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units earned, increments					50.00%