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Stock-Based Compensation (Narrative) (Details)
$ / shares in Units, $ in Thousands
3 Months Ended
May 17, 2018
shares
Jun. 28, 2017
$ / shares
shares
Mar. 17, 2015
$ / shares
Mar. 11, 2015
$ / shares
shares
Mar. 31, 2019
USD ($)
shares
Mar. 31, 2018
USD ($)
shares
Mar. 02, 2015
$ / shares
item
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share awards granted         18,443 20,361  
Vested in period         8,559 17,612  
Unrecognized compensation cost | $         $ 1,157    
Unrecognized compensation cost recognition period         3 years 1 month 6 days    
Stock-based compensation | $         $ 336 $ 402  
2016 Stock Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares authorized         761,538    
Number of additional shares authorized 300,000            
Shares available for issuance         562,515    
Shares issued to independent directors         4,409 2,922  
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]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unrecognized compensation cost | $         $ 1,380    
Market Based Share Awards [Member] | 2016 Stock Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Expiration date   Mar. 31, 2022          
Market based share award, potential shares earned and issued   36,692          
Market price target increments | $ / shares   $ 1          
Trading period used to determine award price   60 days          
Market Based Share Awards [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] | 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]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unrecognized compensation cost | $         $ 147    
Performance Based Share Awards [Member] | 2016 Stock Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Expiration date   Dec. 31, 2021          
Additional shares earned per percentage if actual FFO exceeds budgeted FFO   391          
Percentage increment required to earn additional shares   2.00%          
Grant date fair value, assumed percentage of budgeted FFO         100.00%    
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         13,778    
Grant date fair value | $         $ 122 $ 212  
Vested in period         2,550 21,133  
Vested in period, fair value | $         $ 22    
Warrants [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares called by warrant             101,213
Common stock warrants, exercise price | $ / shares     $ 12.48 $ 9.88     $ 9.88
Expiration period         3 years    
Shares purchased with warrants       35,060      
Warrants [Member] | Minimum [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Units earned, increments     33.33%        
Warrants [Member] | Maximum [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Units earned, increments     50.00%        
Warrants [Member] | Executive Officer [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of officers granted share awards | item             1