XML 96 R78.htm IDEA: XBRL DOCUMENT v3.8.0.1
Schedule III: Real Estate and Accumulated Depreciation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances $ 451,862      
Land 876,011      
Buildings and Improvements 1,531,513      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,088,221      
Land 864,813      
Buildings and Improvements 2,630,932      
Total 3,495,745      
Accumulated Depreciation 12/31/2017 $ 789,919 $ 797,919 $ 792,501 $ 786,978
1650 Highway 155 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) McDonough, GA      
Land $ 779      
Buildings and Improvements 4,544      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (755)      
Land 356      
Buildings and Improvements 4,212      
Total 4,568      
Accumulated Depreciation 12/31/2017 $ 2,467      
4051 Southmeadow Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Atlanta, GA      
Land $ 726      
Buildings and Improvements 4,130      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,662      
Land 726      
Buildings and Improvements 5,792      
Total 6,518      
Accumulated Depreciation 12/31/2017 $ 2,881      
4071 Southmeadow Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Atlanta, GA      
Land $ 750      
Buildings and Improvements 4,460      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,835      
Land 828      
Buildings and Improvements 6,217      
Total 7,045      
Accumulated Depreciation 12/31/2017 $ 3,313      
4081 Southmeadow Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Atlanta, GA      
Land $ 1,012      
Buildings and Improvements 5,918      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,088      
Land 1,157      
Buildings and Improvements 7,861      
Total 9,018      
Accumulated Depreciation 12/31/2017 $ 4,077      
5570 Tulane Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Atlanta, GA      
Encumbrances $ 2,131      
Land 527      
Buildings and Improvements 2,984      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,232      
Land 546      
Buildings and Improvements 4,197      
Total 4,743      
Accumulated Depreciation 12/31/2017 $ 1,976      
955 Cobb Place [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kennesaw, GA      
Encumbrances $ 2,803      
Land 780      
Buildings and Improvements 4,420      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,036      
Land 804      
Buildings and Improvements 5,432      
Total 6,236      
Accumulated Depreciation 12/31/2017 $ 2,613      
1005 Sigman Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Conyers, GA      
Encumbrances $ 2,192      
Land 566      
Buildings and Improvements 3,134      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,176      
Land 574      
Buildings and Improvements 4,302      
Total 4,876      
Accumulated Depreciation 12/31/2017 $ 1,628      
2050 East Park Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Conyers, GA      
Land $ 452      
Buildings and Improvements 2,504      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 860      
Land 459      
Buildings and Improvements 3,357      
Total 3,816      
Accumulated Depreciation 12/31/2017 $ 1,346      
3060 South Park Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ellenwood, GA      
Land $ 1,600      
Buildings and Improvements 12,464      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,202      
Land 1,604      
Buildings and Improvements 15,662      
Total 17,266      
Accumulated Depreciation 12/31/2017 $ 5,482      
175 Greenwood Industrial Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) McDonough, GA      
Encumbrances $ 4,127      
Land 1,550      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7,632      
Land 1,550      
Buildings and Improvements 7,632      
Total 9,182      
Accumulated Depreciation 12/31/2017 $ 2,603      
5095 Phillip Lee Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Atlanta, GA      
Encumbrances $ 3,630      
Land 735      
Buildings and Improvements 3,627      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 493      
Land 740      
Buildings and Improvements 4,115      
Total 4,855      
Accumulated Depreciation 12/31/2017 $ 3,182      
6514 Warren Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Norcross, GA      
Land $ 510      
Buildings and Improvements 1,250      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 133      
Land 513      
Buildings and Improvements 1,380      
Total 1,893      
Accumulated Depreciation 12/31/2017 $ 560      
6544 Warren Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Norcross, GA      
Land $ 711      
Buildings and Improvements 2,310      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 334      
Land 715      
Buildings and Improvements 2,640      
Total 3,355      
Accumulated Depreciation 12/31/2017 $ 1,183      
5356 E. Ponce De Leon [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Stone Mountain, GA      
Land $ 604      
Buildings and Improvements 3,888      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3      
Land 610      
Buildings and Improvements 3,885      
Total 4,495      
Accumulated Depreciation 12/31/2017 $ 2,271      
5390 E. Ponce De Leon [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Stone Mountain, GA      
Land $ 397      
Buildings and Improvements 1,791      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 206      
Land 402      
Buildings and Improvements 1,992      
Total 2,394      
Accumulated Depreciation 12/31/2017 $ 951      
195 & 197 Collins Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Athens, GA      
Land $ 1,410      
Buildings and Improvements 5,344      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 539      
Land 989      
Buildings and Improvements 6,304      
Total 7,293      
Accumulated Depreciation 12/31/2017 $ 4,078      
1755 Enterprise Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Buford, GA      
Encumbrances $ 1,181      
Land 712      
Buildings and Improvements 2,118      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (202)      
Land 716      
Buildings and Improvements 1,912      
Total 2,628      
Accumulated Depreciation 12/31/2017 $ 825      
4555 Atwater Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Buford, GA      
Encumbrances $ 2,035      
Land 881      
Buildings and Improvements 3,550      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 96      
Land 885      
Buildings and Improvements 3,642      
Total 4,527      
Accumulated Depreciation 12/31/2017 $ 1,402      
80 Liberty Industrial Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) McDonough, GA      
Land $ 756      
Buildings and Improvements 3,695      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (1,392)      
Land 467      
Buildings and Improvements 2,592      
Total 3,059      
Accumulated Depreciation 12/31/2017 $ 1,105      
596 Bonnie Valentine [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pendergrass, GA      
Land $ 2,580      
Buildings and Improvements 21,730      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,537      
Land 2,594      
Buildings and Improvements 24,253      
Total 26,847      
Accumulated Depreciation 12/31/2017 $ 6,929      
11415 Old Roswell Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Alpharetta, GA      
Land $ 2,403      
Buildings and Improvements 1,912      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 808      
Land 2,428      
Buildings and Improvements 2,695      
Total 5,123      
Accumulated Depreciation 12/31/2017 $ 867      
1281 Highway 155 S. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) McDonough, GA      
Land $ 2,501      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 17,055      
Land 2,501      
Buildings and Improvements 17,055      
Total 19,556      
Accumulated Depreciation 12/31/2017 $ 592      
9700 Martin Luther King Hwy [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 700      
Buildings and Improvements 1,920      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 638      
Land 700      
Buildings and Improvements 2,558      
Total 3,258      
Accumulated Depreciation 12/31/2017 $ 1,077      
9730 Martin Luther King Hwy [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 500      
Buildings and Improvements 955      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 433      
Land 500      
Buildings and Improvements 1,388      
Total 1,888      
Accumulated Depreciation 12/31/2017 $ 644      
4621 Boston Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 1,100      
Buildings and Improvements 3,070      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,084      
Land 1,100      
Buildings and Improvements 4,154      
Total 5,254      
Accumulated Depreciation 12/31/2017 $ 1,815      
4720 Boston Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 1,200      
Buildings and Improvements 2,174      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 838      
Land 1,200      
Buildings and Improvements 3,012      
Total 4,212      
Accumulated Depreciation 12/31/2017 $ 1,310      
22520 Randolph Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dulles, VA      
Land $ 3,200      
Buildings and Improvements 8,187      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 187      
Land 3,208      
Buildings and Improvements 8,366      
Total 11,574      
Accumulated Depreciation 12/31/2017 $ 2,245      
22630 Dulles Summit Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dulles, VA      
Land $ 2,200      
Buildings and Improvements 9,346      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (903)      
Land 2,206      
Buildings and Improvements 8,437      
Total 10,643      
Accumulated Depreciation 12/31/2017 $ 2,531      
4370-4383 Lottsford Vista Rd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 279      
Buildings and Improvements 1,358      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 63      
Land 296      
Buildings and Improvements 1,404      
Total 1,700      
Accumulated Depreciation 12/31/2017 $ 471      
4400 Lottsford Vista Rd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 351      
Buildings and Improvements 1,955      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (21)      
Land 372      
Buildings and Improvements 1,913      
Total 2,285      
Accumulated Depreciation 12/31/2017 $ 606      
4420 Lottsford Vista Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 539      
Buildings and Improvements 2,196      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 289      
Land 568      
Buildings and Improvements 2,456      
Total 3,024      
Accumulated Depreciation 12/31/2017 $ 825      
11204 McCormick Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hunt Valley, MD      
Land $ 1,017      
Buildings and Improvements 3,132      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 210      
Land 1,038      
Buildings and Improvements 3,321      
Total 4,359      
Accumulated Depreciation 12/31/2017 $ 1,637      
11110 Pepper Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hunt Valley, MD      
Land $ 918      
Buildings and Improvements 2,529      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 300      
Land 938      
Buildings and Improvements 2,809      
Total 3,747      
Accumulated Depreciation 12/31/2017 $ 1,324      
11100-11120 Gilroy Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hunt Valley, MD      
Land $ 901      
Buildings and Improvements 1,455      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 67      
Land 919      
Buildings and Improvements 1,504      
Total 2,423      
Accumulated Depreciation 12/31/2017 $ 696      
10709 Gilroy Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hunt Valley, MD      
Encumbrances $ 2,014      
Land 913      
Buildings and Improvements 2,705      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (103)      
Land 913      
Buildings and Improvements 2,602      
Total 3,515      
Accumulated Depreciation 12/31/2017 $ 1,596      
10707 Gilroy Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hunt Valley, MD      
Land $ 1,111      
Buildings and Improvements 3,819      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 564      
Land 1,136      
Buildings and Improvements 4,358      
Total 5,494      
Accumulated Depreciation 12/31/2017 $ 2,169      
38 Loveton Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Sparks, MD      
Land $ 1,648      
Buildings and Improvements 2,151      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (192)      
Land 1,690      
Buildings and Improvements 1,917      
Total 3,607      
Accumulated Depreciation 12/31/2017 $ 967      
1225 Bengies Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Baltimore, MD      
Land $ 2,640      
Buildings and Improvements 270      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13,510      
Land 2,823      
Buildings and Improvements 13,597      
Total 16,420      
Accumulated Depreciation 12/31/2017 $ 4,311      
400 Old Post Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Aberdeen, MD      
Land $ 3,411      
Buildings and Improvements 17,144      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,486      
Land 3,411      
Buildings and Improvements 18,630      
Total 22,041      
Accumulated Depreciation 12/31/2017 $ 1,584      
500 Old Post Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Aberdeen, MD      
Land $ 5,959      
Buildings and Improvements 30,533      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 146      
Land 5,959      
Buildings and Improvements 30,679      
Total 36,638      
Accumulated Depreciation 12/31/2017 $ 2,712      
1214-B Freedom Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Cranberry Township, PA      
Encumbrances $ 1,008      
Land 31      
Buildings and Improvements 994      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 613      
Land 200      
Buildings and Improvements 1,438      
Total 1,638      
Accumulated Depreciation 12/31/2017 $ 1,324      
401 Russell Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Middletown, PA      
Land $ 262      
Buildings and Improvements 857      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,799      
Land 287      
Buildings and Improvements 2,631      
Total 2,918      
Accumulated Depreciation 12/31/2017 $ 2,141      
2700 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Middletown, PA      
Land $ 196      
Buildings and Improvements 997      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 797      
Land 206      
Buildings and Improvements 1,784      
Total 1,990      
Accumulated Depreciation 12/31/2017 $ 1,527      
2701 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Middletown, PA      
Encumbrances $ 1,477      
Land 141      
Buildings and Improvements 859      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,399      
Land 164      
Buildings and Improvements 2,235      
Total 2,399      
Accumulated Depreciation 12/31/2017 $ 1,620      
2780 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Middletown, PA      
Encumbrances $ 1,235      
Land 113      
Buildings and Improvements 743      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,150      
Land 209      
Buildings and Improvements 1,797      
Total 2,006      
Accumulated Depreciation 12/31/2017 $ 1,537      
350 Old Silver Spring Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mechanicsburg, PA      
Land $ 510      
Buildings and Improvements 2,890      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,449      
Land 541      
Buildings and Improvements 9,308      
Total 9,849      
Accumulated Depreciation 12/31/2017 $ 4,453      
16522 Hunters Green Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hagerstown, MD      
Encumbrances $ 12,010      
Land 1,390      
Buildings and Improvements 13,104      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5,007      
Land 1,863      
Buildings and Improvements 17,638      
Total 19,501      
Accumulated Depreciation 12/31/2017 $ 5,571      
18212 Shawley Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hagerstown, MD      
Encumbrances $ 5,020      
Land 1,000      
Buildings and Improvements 5,847      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,304      
Land 1,016      
Buildings and Improvements 7,135      
Total 8,151      
Accumulated Depreciation 12/31/2017 $ 2,328      
37 Valley View Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Jessup, PA      
Encumbrances $ 2,303      
Land 542      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,197      
Land 532      
Buildings and Improvements 3,207      
Total 3,739      
Accumulated Depreciation 12/31/2017 $ 1,005      
14 McFadden Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Palmer, PA      
Land $ 600      
Buildings and Improvements 1,349      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (274)      
Land 625      
Buildings and Improvements 1,050      
Total 1,675      
Accumulated Depreciation 12/31/2017 $ 367      
431 Railroad Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shiremanstown, PA      
Land $ 1,293      
Buildings and Improvements 7,164      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,968      
Land 1,341      
Buildings and Improvements 9,084      
Total 10,425      
Accumulated Depreciation 12/31/2017 $ 4,845      
6951 Allentown Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Harrisburg, PA      
Land $ 585      
Buildings and Improvements 3,176      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 315      
Land 601      
Buildings and Improvements 3,475      
Total 4,076      
Accumulated Depreciation 12/31/2017 $ 1,640      
320 Reliance Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Washington, PA      
Land $ 201      
Buildings and Improvements 1,819      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (348)      
Land 178      
Buildings and Improvements 1,494      
Total 1,672      
Accumulated Depreciation 12/31/2017 $ 875      
2801 Red Lion Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Philadelphia, PA      
Land $ 950      
Buildings and Improvements 5,916      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7      
Land 964      
Buildings and Improvements 5,909      
Total 6,873      
Accumulated Depreciation 12/31/2017 $ 2,928      
1351 Eisenhower Blvd., Bldg 1 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Harrisburg, PA      
Land $ 382      
Buildings and Improvements 2,343      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 8      
Land 387      
Buildings and Improvements 2,346      
Total 2,733      
Accumulated Depreciation 12/31/2017 $ 740      
1351 Eisenhower Blvd., Bldg 2 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Harrisburg, PA      
Land $ 436      
Buildings and Improvements 1,587      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (223)      
Land 443      
Buildings and Improvements 1,357      
Total 1,800      
Accumulated Depreciation 12/31/2017 $ 473      
200 Cascade Drive, Bldg. 1 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Allentown, PA      
Encumbrances $ 12,693      
Land 2,133      
Buildings and Improvements 17,562      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 745      
Land 2,769      
Buildings and Improvements 17,671      
Total 20,440      
Accumulated Depreciation 12/31/2017 $ 7,402      
200 Cascade Drive, Bldg. 2 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Allentown, PA      
Encumbrances $ 1,628      
Land 310      
Buildings and Improvements 2,268      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 67      
Land 316      
Buildings and Improvements 2,329      
Total 2,645      
Accumulated Depreciation 12/31/2017 $ 831      
1490 Dennison Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlisle, PA      
Land $ 1,500      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13,874      
Land 2,341      
Buildings and Improvements 13,033      
Total 15,374      
Accumulated Depreciation 12/31/2017 $ 4,083      
298 First Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Covington Twp, PA      
Land $ 7,022      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 57,325      
Land 7,019      
Buildings and Improvements 57,328      
Total 64,347      
Accumulated Depreciation 12/31/2017 $ 13,543      
225 Cross Farm Lane [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) York, PA      
Encumbrances $ 17,172      
Land 4,718      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 23,163      
Land 4,715      
Buildings and Improvements 23,166      
Total 27,881      
Accumulated Depreciation 12/31/2017 $ 5,941      
6300 Bristol Pike [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Levittown, PA      
Land $ 1,074      
Buildings and Improvements 2,642      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (110)      
Land 964      
Buildings and Improvements 2,642      
Total 3,606      
Accumulated Depreciation 12/31/2017 $ 2,230      
2455 Boulevard of Generals [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Norristown, PA      
Encumbrances $ 3,123      
Land 1,200      
Buildings and Improvements 4,800      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 950      
Land 1,226      
Buildings and Improvements 5,724      
Total 6,950      
Accumulated Depreciation 12/31/2017 $ 2,014      
105 Steamboat Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Manchester, PA      
Land $ 4,085      
Buildings and Improvements 14,464      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1      
Land 4,070      
Buildings and Improvements 14,480      
Total 18,550      
Accumulated Depreciation 12/31/2017 $ 3,451      
20 Leo Lane [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) York County, PA      
Land $ 6,884      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 27,442      
Land 6,889      
Buildings and Improvements 27,437      
Total 34,326      
Accumulated Depreciation 12/31/2017 $ 2,724      
3895 Eastgate Blvd Bldg A [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Easton, PA      
Land $ 4,855      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 17,788      
Land 4,388      
Buildings and Improvements 18,255      
Total 22,643      
Accumulated Depreciation 12/31/2017 $ 1,096      
3895 Eastgate Blvd Bldg B [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Easton, PA      
Land $ 3,459      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13,816      
Land 3,128      
Buildings and Improvements 14,147      
Total 17,275      
Accumulated Depreciation 12/31/2017 $ 932      
720-730 Landwehr Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Northbrook, IL      
Land $ 521      
Buildings and Improvements 2,982      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 855      
Land 521      
Buildings and Improvements 3,837      
Total 4,358      
Accumulated Depreciation 12/31/2017 $ 2,107      
1385 101st Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lemont, IL      
Encumbrances $ 3,705      
Land 967      
Buildings and Improvements 5,554      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,723      
Land 968      
Buildings and Improvements 7,276      
Total 8,244      
Accumulated Depreciation 12/31/2017 $ 3,884      
2300 Windsor Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Addison, IL      
Encumbrances $ 3,492      
Land 688      
Buildings and Improvements 3,943      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,040      
Land 696      
Buildings and Improvements 4,975      
Total 5,671      
Accumulated Depreciation 12/31/2017 $ 2,885      
305-311 Era Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Northbrook, IL      
Land $ 200      
Buildings and Improvements 1,154      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,242      
Land 205      
Buildings and Improvements 2,391      
Total 2,596      
Accumulated Depreciation 12/31/2017 $ 1,039      
800 Business Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mount Prospect, IL      
Land $ 631      
Buildings and Improvements 3,493      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 328      
Land 666      
Buildings and Improvements 3,786      
Total 4,452      
Accumulated Depreciation 12/31/2017 $ 1,622      
580 Slawin Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mount Prospect, IL      
Encumbrances $ 734      
Land 233      
Buildings and Improvements 1,292      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (37)      
Land 162      
Buildings and Improvements 1,326      
Total 1,488      
Accumulated Depreciation 12/31/2017 $ 689      
1005 101st Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lemont, IL      
Encumbrances $ 5,420      
Land 1,200      
Buildings and Improvements 6,643      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,619      
Land 1,220      
Buildings and Improvements 8,242      
Total 9,462      
Accumulated Depreciation 12/31/2017 $ 3,050      
175 Wall Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glendale Heights, IL      
Encumbrances $ 1,565      
Land 427      
Buildings and Improvements 2,363      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 692      
Land 433      
Buildings and Improvements 3,049      
Total 3,482      
Accumulated Depreciation 12/31/2017 $ 997      
251 Airport Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) North Aurora, IL      
Encumbrances $ 4,155      
Land 983      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,924      
Land 983      
Buildings and Improvements 6,924      
Total 7,907      
Accumulated Depreciation 12/31/2017 $ 2,889      
1661 Feehanville Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mount Prospect, IL      
Land $ 985      
Buildings and Improvements 5,455      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,735      
Land 1,044      
Buildings and Improvements 9,131      
Total 10,175      
Accumulated Depreciation 12/31/2017 $ 4,254      
400 Crossroads Pkwy [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Bolingbrook, IL      
Encumbrances $ 5,273      
Land 1,178      
Buildings and Improvements 9,453      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,102      
Land 1,181      
Buildings and Improvements 10,552      
Total 11,733      
Accumulated Depreciation 12/31/2017 $ 4,175      
7801 W. Industrial Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Forest Park, IL      
Land $ 1,215      
Buildings and Improvements 3,020      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,314      
Land 1,220      
Buildings and Improvements 4,329      
Total 5,549      
Accumulated Depreciation 12/31/2017 $ 1,830      
725 Kimberly Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carol Stream, IL      
Land $ 793      
Buildings and Improvements 1,395      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 234      
Land 801      
Buildings and Improvements 1,621      
Total 2,422      
Accumulated Depreciation 12/31/2017 $ 815      
17001 S. Vincennes [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thornton, IL      
Land $ 497      
Buildings and Improvements 504      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3      
Land 513      
Buildings and Improvements 491      
Total 1,004      
Accumulated Depreciation 12/31/2017 $ 415      
2900 W. 166th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Markham, IL      
Land $ 1,132      
Buildings and Improvements 4,293      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (881)      
Land 1,134      
Buildings and Improvements 3,410      
Total 4,544      
Accumulated Depreciation 12/31/2017 $ 1,158      
555 W. Algonquin Rd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington Heights, IL      
Encumbrances $ 1,899      
Land 574      
Buildings and Improvements 741      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,936      
Land 579      
Buildings and Improvements 2,672      
Total 3,251      
Accumulated Depreciation 12/31/2017 $ 990      
1501 Oakton Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Elk Grove Village, IL      
Encumbrances $ 6,095      
Land 3,369      
Buildings and Improvements 6,121      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 134      
Land 3,482      
Buildings and Improvements 6,142      
Total 9,624      
Accumulated Depreciation 12/31/2017 $ 1,902      
16500 W. 103rd Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Woodridge, IL      
Land $ 744      
Buildings and Improvements 2,458      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 143      
Land 762      
Buildings and Improvements 2,583      
Total 3,345      
Accumulated Depreciation 12/31/2017 $ 965      
8505 50th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kenosha, WI      
Land $ 3,212      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 32,956      
Land 3,212      
Buildings and Improvements 32,956      
Total 36,168      
Accumulated Depreciation 12/31/2017 $ 8,027      
4100 Rock Creek Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Joliet, IL      
Land $ 4,476      
Buildings and Improvements 16,061      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 634      
Land 4,476      
Buildings and Improvements 16,695      
Total 21,171      
Accumulated Depreciation 12/31/2017 $ 3,085      
10100 58th Place [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kenosha, WI      
Land $ 4,201      
Buildings and Improvements 17,604      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,203      
Land 4,201      
Buildings and Improvements 18,807      
Total 23,008      
Accumulated Depreciation 12/31/2017 $ 4,378      
401 Airport Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) North Aurora, IL      
Land $ 534      
Buildings and Improvements 1,957      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 12      
Land 534      
Buildings and Improvements 1,969      
Total 2,503      
Accumulated Depreciation 12/31/2017 $ 299      
3737 84th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Somers, WI      
Land $ 1,943      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 24,144      
Land 1,943      
Buildings and Improvements 24,144      
Total 26,087      
Accumulated Depreciation 12/31/2017 $ 1,000      
81 Paragon Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Romeoville, IL      
Land $ 1,787      
Buildings and Improvements 7,252      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 689      
Land 1,787      
Buildings and Improvements 7,941      
Total 9,728      
Accumulated Depreciation 12/31/2017 $ 300      
10680 88th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pleasant Prairie, WI      
Land $ 1,376      
Buildings and Improvements 4,757      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 1,376      
Buildings and Improvements 4,757      
Total 6,133      
Accumulated Depreciation 12/31/2017 $ 34      
8725 31st Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Somers, WI      
Land $ 2,133      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 26,478      
Land 2,134      
Buildings and Improvements 26,477      
Total 28,611      
Accumulated Depreciation 12/31/2017 $ 575      
4700-4750 Creek Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Blue Ash, OH      
Land $ 1,080      
Buildings and Improvements 6,118      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,510      
Land 1,109      
Buildings and Improvements 7,599      
Total 8,708      
Accumulated Depreciation 12/31/2017 $ 3,743      
4436 Mulhauser Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hamilton, OH      
Encumbrances $ 3,614      
Land 630      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5,238      
Land 630      
Buildings and Improvements 5,238      
Total 5,868      
Accumulated Depreciation 12/31/2017 $ 1,954      
4438 Mulhauser Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hamilton, OH      
Land $ 779      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,355      
Land 779      
Buildings and Improvements 6,355      
Total 7,134      
Accumulated Depreciation 12/31/2017 $ 2,458      
420 Wards Corner Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Loveland, OH      
Land $ 600      
Buildings and Improvements 1,083      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 945      
Land 606      
Buildings and Improvements 2,022      
Total 2,628      
Accumulated Depreciation 12/31/2017 $ 826      
422 Wards Corner Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Loveland, OH      
Land $ 600      
Buildings and Improvements 1,811      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 385      
Land 592      
Buildings and Improvements 2,204      
Total 2,796      
Accumulated Depreciation 12/31/2017 $ 793      
4663 Dues Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 858      
Buildings and Improvements 2,273      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 606      
Land 875      
Buildings and Improvements 2,862      
Total 3,737      
Accumulated Depreciation 12/31/2017 $ 1,801      
9345 Princeton-Glendale Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Encumbrances $ 1,279      
Land 818      
Buildings and Improvements 1,648      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 380      
Land 840      
Buildings and Improvements 2,006      
Total 2,846      
Accumulated Depreciation 12/31/2017 $ 1,533      
9525 Glades Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 347      
Buildings and Improvements 1,323      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 112      
Land 355      
Buildings and Improvements 1,427      
Total 1,782      
Accumulated Depreciation 12/31/2017 $ 602      
9774-9792 Windisch Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 392      
Buildings and Improvements 1,744      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 421      
Land 394      
Buildings and Improvements 2,163      
Total 2,557      
Accumulated Depreciation 12/31/2017 $ 795      
9808-9830 Windisch Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 395      
Buildings and Improvements 2,541      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 261      
Land 397      
Buildings and Improvements 2,800      
Total 3,197      
Accumulated Depreciation 12/31/2017 $ 913      
9842-9862 Windisch Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 506      
Buildings and Improvements 3,148      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 157      
Land 508      
Buildings and Improvements 3,303      
Total 3,811      
Accumulated Depreciation 12/31/2017 $ 1,052      
9872-9898 Windisch Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 546      
Buildings and Improvements 3,039      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 159      
Land 548      
Buildings and Improvements 3,196      
Total 3,744      
Accumulated Depreciation 12/31/2017 $ 1,127      
9902-9922 Windisch Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 623      
Buildings and Improvements 4,003      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,293      
Land 627      
Buildings and Improvements 5,292      
Total 5,919      
Accumulated Depreciation 12/31/2017 $ 2,276      
30311 Emerald Valley Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glenwillow, OH      
Encumbrances $ 7,102      
Land 681      
Buildings and Improvements 11,838      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 993      
Land 691      
Buildings and Improvements 12,821      
Total 13,512      
Accumulated Depreciation 12/31/2017 $ 5,305      
30333 Emerald Valley Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glenwillow, OH      
Land $ 466      
Buildings and Improvements 5,447      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (615)      
Land 475      
Buildings and Improvements 4,823      
Total 5,298      
Accumulated Depreciation 12/31/2017 $ 1,734      
7800 Cochran Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glenwillow, OH      
Encumbrances $ 3,750      
Land 972      
Buildings and Improvements 7,033      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 338      
Land 991      
Buildings and Improvements 7,352      
Total 8,343      
Accumulated Depreciation 12/31/2017 $ 2,864      
7900 Cochran Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glenwillow, OH      
Encumbrances $ 3,761      
Land 775      
Buildings and Improvements 6,244      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 137      
Land 792      
Buildings and Improvements 6,364      
Total 7,156      
Accumulated Depreciation 12/31/2017 $ 2,546      
7905 Cochran Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glenwillow, OH      
Encumbrances $ 4,090      
Land 920      
Buildings and Improvements 6,174      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 45      
Land 922      
Buildings and Improvements 6,217      
Total 7,139      
Accumulated Depreciation 12/31/2017 $ 2,224      
8181 Darrow Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Twinsburg, OH      
Encumbrances $ 6,992      
Land 2,478      
Buildings and Improvements 6,791      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,084      
Land 2,496      
Buildings and Improvements 8,857      
Total 11,353      
Accumulated Depreciation 12/31/2017 $ 5,000      
2406-2416 Walnut Ridge [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 178      
Buildings and Improvements 1,006      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 592      
Land 172      
Buildings and Improvements 1,604      
Total 1,776      
Accumulated Depreciation 12/31/2017 $ 680      
2401-2419 Walnut Ridge [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 148      
Buildings and Improvements 839      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 416      
Land 142      
Buildings and Improvements 1,261      
Total 1,403      
Accumulated Depreciation 12/31/2017 $ 571      
900-906 Great Southwest Pkwy [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 237      
Buildings and Improvements 1,342      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 478      
Land 270      
Buildings and Improvements 1,787      
Total 2,057      
Accumulated Depreciation 12/31/2017 $ 847      
3000 West Commerce [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 456      
Buildings and Improvements 2,584      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,160      
Land 469      
Buildings and Improvements 3,731      
Total 4,200      
Accumulated Depreciation 12/31/2017 $ 1,833      
405-407 113th [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 181      
Buildings and Improvements 1,026      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 464      
Land 185      
Buildings and Improvements 1,486      
Total 1,671      
Accumulated Depreciation 12/31/2017 $ 677      
816 111th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 251      
Buildings and Improvements 1,421      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 139      
Land 258      
Buildings and Improvements 1,553      
Total 1,811      
Accumulated Depreciation 12/31/2017 $ 755      
7427 Dogwood Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 96      
Buildings and Improvements 532      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 316      
Land 102      
Buildings and Improvements 842      
Total 944      
Accumulated Depreciation 12/31/2017 $ 355      
7348-54 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 88      
Buildings and Improvements 489      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 218      
Land 94      
Buildings and Improvements 701      
Total 795      
Accumulated Depreciation 12/31/2017 $ 316      
7339-41 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 98      
Buildings and Improvements 541      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 175      
Land 104      
Buildings and Improvements 710      
Total 814      
Accumulated Depreciation 12/31/2017 $ 317      
7437-45 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 102      
Buildings and Improvements 563      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 423      
Land 108      
Buildings and Improvements 980      
Total 1,088      
Accumulated Depreciation 12/31/2017 $ 361      
7331-59 Airport Freeway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Encumbrances $ 1,813      
Land 354      
Buildings and Improvements 1,958      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 632      
Land 372      
Buildings and Improvements 2,572      
Total 2,944      
Accumulated Depreciation 12/31/2017 $ 1,143      
7338-60 Dogwood Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 106      
Buildings and Improvements 587      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 257      
Land 112      
Buildings and Improvements 838      
Total 950      
Accumulated Depreciation 12/31/2017 $ 365      
7450-70 Dogwood Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 106      
Buildings and Improvements 584      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 152      
Land 112      
Buildings and Improvements 730      
Total 842      
Accumulated Depreciation 12/31/2017 $ 338      
7423-49 Airport Freeway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Encumbrances $ 1,527      
Land 293      
Buildings and Improvements 1,621      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 565      
Land 308      
Buildings and Improvements 2,171      
Total 2,479      
Accumulated Depreciation 12/31/2017 $ 944      
7400 Whitehall Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 109      
Buildings and Improvements 603      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 95      
Land 115      
Buildings and Improvements 692      
Total 807      
Accumulated Depreciation 12/31/2017 $ 321      
1602-1654 Terre Colony [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 458      
Buildings and Improvements 2,596      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 864      
Land 468      
Buildings and Improvements 3,450      
Total 3,918      
Accumulated Depreciation 12/31/2017 $ 1,450      
2220 Merritt Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Garland, TX      
Land $ 352      
Buildings and Improvements 1,993      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 393      
Land 316      
Buildings and Improvements 2,422      
Total 2,738      
Accumulated Depreciation 12/31/2017 $ 896      
2485-2505 Merritt Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Garland, TX      
Land $ 431      
Buildings and Improvements 2,440      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 529      
Land 443      
Buildings and Improvements 2,957      
Total 3,400      
Accumulated Depreciation 12/31/2017 $ 1,193      
2110 Hutton Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Land $ 374      
Buildings and Improvements 2,117      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 385      
Land 255      
Buildings and Improvements 2,621      
Total 2,876      
Accumulated Depreciation 12/31/2017 $ 1,176      
2025 McKenzie Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Land $ 437      
Buildings and Improvements 2,478      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 516      
Land 442      
Buildings and Improvements 2,989      
Total 3,431      
Accumulated Depreciation 12/31/2017 $ 1,151      
2019 McKenzie Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Land $ 502      
Buildings and Improvements 2,843      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 288      
Land 507      
Buildings and Improvements 3,126      
Total 3,633      
Accumulated Depreciation 12/31/2017 $ 1,282      
2029-2035 McKenzie Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Land $ 306      
Buildings and Improvements 1,870      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 356      
Land 306      
Buildings and Improvements 2,226      
Total 2,532      
Accumulated Depreciation 12/31/2017 $ 858      
2015 McKenzie Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Encumbrances $ 2,029      
Land 510      
Buildings and Improvements 2,891      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 460      
Land 516      
Buildings and Improvements 3,345      
Total 3,861      
Accumulated Depreciation 12/31/2017 $ 1,386      
2009 McKenzie Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Encumbrances $ 1,940      
Land 476      
Buildings and Improvements 2,699      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 516      
Land 481      
Buildings and Improvements 3,210      
Total 3,691      
Accumulated Depreciation 12/31/2017 $ 1,385      
900-1100 Avenue S [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Land $ 623      
Buildings and Improvements 3,528      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 994      
Land 629      
Buildings and Improvements 4,516      
Total 5,145      
Accumulated Depreciation 12/31/2017 $ 1,628      
Plano Crossing Bus. Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Plano, TX      
Encumbrances $ 7,480      
Land 1,961      
Buildings and Improvements 11,112      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,160      
Land 1,981      
Buildings and Improvements 12,252      
Total 14,233      
Accumulated Depreciation 12/31/2017 $ 4,611      
7413A-C Dogwood Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 110      
Buildings and Improvements 623      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 197      
Land 111      
Buildings and Improvements 819      
Total 930      
Accumulated Depreciation 12/31/2017 $ 317      
7450 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 36      
Buildings and Improvements 204      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 203      
Land 36      
Buildings and Improvements 407      
Total 443      
Accumulated Depreciation 12/31/2017 $ 144      
7436 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 57      
Buildings and Improvements 324      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 191      
Land 58      
Buildings and Improvements 514      
Total 572      
Accumulated Depreciation 12/31/2017 $ 161      
7426 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 76      
Buildings and Improvements 429      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 185      
Land 76      
Buildings and Improvements 614      
Total 690      
Accumulated Depreciation 12/31/2017 $ 219      
7427-7429 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 75      
Buildings and Improvements 427      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 190      
Land 76      
Buildings and Improvements 616      
Total 692      
Accumulated Depreciation 12/31/2017 $ 197      
2840-2842 Handley Ederville Rd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 112      
Buildings and Improvements 635      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 84      
Land 113      
Buildings and Improvements 718      
Total 831      
Accumulated Depreciation 12/31/2017 $ 266      
7451-7477 Airport Freeway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Encumbrances $ 1,276      
Land 256      
Buildings and Improvements 1,453      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 363      
Land 259      
Buildings and Improvements 1,813      
Total 2,072      
Accumulated Depreciation 12/31/2017 $ 652      
3000 Wesley Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 208      
Buildings and Improvements 1,181      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 45      
Land 211      
Buildings and Improvements 1,223      
Total 1,434      
Accumulated Depreciation 12/31/2017 $ 462      
7451 Dogwood Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 133      
Buildings and Improvements 753      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 167      
Land 134      
Buildings and Improvements 919      
Total 1,053      
Accumulated Depreciation 12/31/2017 $ 328      
825-827 Avenue H [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Encumbrances $ 2,296      
Land 600      
Buildings and Improvements 3,006      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 402      
Land 604      
Buildings and Improvements 3,404      
Total 4,008      
Accumulated Depreciation 12/31/2017 $ 1,603      
1013-31 Avenue M [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Land $ 300      
Buildings and Improvements 1,504      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 296      
Land 302      
Buildings and Improvements 1,798      
Total 2,100      
Accumulated Depreciation 12/31/2017 $ 791      
1172-84 113th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Land $ 700      
Buildings and Improvements 3,509      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (16)      
Land 704      
Buildings and Improvements 3,489      
Total 4,193      
Accumulated Depreciation 12/31/2017 $ 1,312      
1200-16 Avenue H [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 600      
Buildings and Improvements 2,846      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 760      
Land 604      
Buildings and Improvements 3,602      
Total 4,206      
Accumulated Depreciation 12/31/2017 $ 1,295      
1322-66 W. North Carrier Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Encumbrances $ 4,190      
Land 1,000      
Buildings and Improvements 5,012      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,302      
Land 1,006      
Buildings and Improvements 6,308      
Total 7,314      
Accumulated Depreciation 12/31/2017 $ 2,469      
2401-2407 Centennial Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Encumbrances $ 2,060      
Land 600      
Buildings and Improvements 2,534      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 578      
Land 604      
Buildings and Improvements 3,108      
Total 3,712      
Accumulated Depreciation 12/31/2017 $ 1,358      
3111 West Commerce Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Encumbrances $ 3,541      
Land 1,000      
Buildings and Improvements 3,364      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,818      
Land 1,011      
Buildings and Improvements 5,171      
Total 6,182      
Accumulated Depreciation 12/31/2017 $ 2,201      
13800 Senlac Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmers Branch, TX      
Encumbrances $ 2,751      
Land 823      
Buildings and Improvements 4,042      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (63)      
Land 825      
Buildings and Improvements 3,977      
Total 4,802      
Accumulated Depreciation 12/31/2017 $ 1,825      
801-831 S Great Southwest Pkwy [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Land $ 2,581      
Buildings and Improvements 16,556      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 419      
Land 2,586      
Buildings and Improvements 16,970      
Total 19,556      
Accumulated Depreciation 12/31/2017 $ 10,466      
801 Heinz Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Encumbrances $ 2,597      
Land 599      
Buildings and Improvements 3,327      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 291      
Land 601      
Buildings and Improvements 3,616      
Total 4,217      
Accumulated Depreciation 12/31/2017 $ 1,764      
901-937 Heinz Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Encumbrances $ 2,037      
Land 493      
Buildings and Improvements 2,758      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 56      
Land 481      
Buildings and Improvements 2,826      
Total 3,307      
Accumulated Depreciation 12/31/2017 $ 1,496      
3301 Century Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Irving, TX      
Land $ 760      
Buildings and Improvements 3,856      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 128      
Land 771      
Buildings and Improvements 3,973      
Total 4,744      
Accumulated Depreciation 12/31/2017 $ 1,256      
3901 W Miller Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Garland, TX      
Land $ 1,912      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 15,358      
Land 1,947      
Buildings and Improvements 15,323      
Total 17,270      
Accumulated Depreciation 12/31/2017 $ 4,578      
1251 North Cockrell Hill Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 2,064      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13,539      
Land 1,073      
Buildings and Improvements 14,530      
Total 15,603      
Accumulated Depreciation 12/31/2017 $ 1,170      
1171 North Cockrell Hill Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 1,215      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 10,971      
Land 632      
Buildings and Improvements 11,554      
Total 12,186      
Accumulated Depreciation 12/31/2017 $ 821      
3996 Scientific Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 1,301      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 8,082      
Land 1,349      
Buildings and Improvements 8,034      
Total 9,383      
Accumulated Depreciation 12/31/2017 $ 780      
750 Gateway Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Coppell, TX      
Land $ 1,452      
Buildings and Improvements 4,679      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 80      
Land 1,452      
Buildings and Improvements 4,759      
Total 6,211      
Accumulated Depreciation 12/31/2017 $ 383      
2250 East Bardin Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 1,603      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 10,465      
Land 1,603      
Buildings and Improvements 10,465      
Total 12,068      
Accumulated Depreciation 12/31/2017 $ 610      
4785 Elati [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 173      
Buildings and Improvements 981      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 382      
Land 175      
Buildings and Improvements 1,361      
Total 1,536      
Accumulated Depreciation 12/31/2017 $ 583      
4770 Fox Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 132      
Buildings and Improvements 750      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 294      
Land 134      
Buildings and Improvements 1,042      
Total 1,176      
Accumulated Depreciation 12/31/2017 $ 461      
3851-3871 Revere [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 361      
Buildings and Improvements 2,047      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 522      
Land 368      
Buildings and Improvements 2,562      
Total 2,930      
Accumulated Depreciation 12/31/2017 $ 1,254      
4570 Ivy Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 219      
Buildings and Improvements 1,239      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 174      
Land 220      
Buildings and Improvements 1,412      
Total 1,632      
Accumulated Depreciation 12/31/2017 $ 723      
5855 Stapleton Drive North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 288      
Buildings and Improvements 1,630      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 217      
Land 290      
Buildings and Improvements 1,845      
Total 2,135      
Accumulated Depreciation 12/31/2017 $ 930      
5885 Stapleton Drive North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 376      
Buildings and Improvements 2,129      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 348      
Land 380      
Buildings and Improvements 2,473      
Total 2,853      
Accumulated Depreciation 12/31/2017 $ 1,238      
5977 North Broadway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Encumbrances $ 1,471      
Land 268      
Buildings and Improvements 1,518      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 603      
Land 271      
Buildings and Improvements 2,118      
Total 2,389      
Accumulated Depreciation 12/31/2017 $ 1,014      
5952-5978 North Broadway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Encumbrances $ 2,133      
Land 414      
Buildings and Improvements 2,346      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 704      
Land 422      
Buildings and Improvements 3,042      
Total 3,464      
Accumulated Depreciation 12/31/2017 $ 1,468      
4721 Ironton Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 232      
Buildings and Improvements 1,313      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 352      
Land 236      
Buildings and Improvements 1,661      
Total 1,897      
Accumulated Depreciation 12/31/2017 $ 786      
7003 E 47th Ave Drive [Member ]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 441      
Buildings and Improvements 2,689      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 47      
Land 441      
Buildings and Improvements 2,736      
Total 3,177      
Accumulated Depreciation 12/31/2017 $ 1,412      
9500 West 49th Street - A [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Wheatridge, CO      
Encumbrances $ 1,045      
Land 283      
Buildings and Improvements 1,625      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 80      
Land 287      
Buildings and Improvements 1,701      
Total 1,988      
Accumulated Depreciation 12/31/2017 $ 897      
9500 West 49th Street - B [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Wheatridge, CO      
Encumbrances $ 870      
Land 225      
Buildings and Improvements 1,272      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 158      
Land 227      
Buildings and Improvements 1,428      
Total 1,655      
Accumulated Depreciation 12/31/2017 $ 707      
9500 West 49th Street - C [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Wheatridge, CO      
Encumbrances $ 2,306      
Land 600      
Buildings and Improvements 3,409      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 378      
Land 601      
Buildings and Improvements 3,786      
Total 4,387      
Accumulated Depreciation 12/31/2017 $ 1,878      
9500 West 49th Street - D [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Wheatridge, CO      
Encumbrances $ 1,051      
Land 246      
Buildings and Improvements 1,537      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 216      
Land 247      
Buildings and Improvements 1,752      
Total 1,999      
Accumulated Depreciation 12/31/2017 $ 940      
451-591 East 124th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thornton, CO      
Land $ 383      
Buildings and Improvements 2,145      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 441      
Land 383      
Buildings and Improvements 2,586      
Total 2,969      
Accumulated Depreciation 12/31/2017 $ 1,326      
6547 South Racine Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Centennial, CO      
Encumbrances $ 2,699      
Land 739      
Buildings and Improvements 4,241      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 494      
Land 739      
Buildings and Improvements 4,735      
Total 5,474      
Accumulated Depreciation 12/31/2017 $ 2,242      
11701 East 53rd Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 416      
Buildings and Improvements 2,355      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 297      
Land 422      
Buildings and Improvements 2,646      
Total 3,068      
Accumulated Depreciation 12/31/2017 $ 1,296      
5401 Oswego [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 273      
Buildings and Improvements 1,547      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 237      
Land 278      
Buildings and Improvements 1,779      
Total 2,057      
Accumulated Depreciation 12/31/2017 $ 885      
445 Bryant Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Encumbrances $ 8,586      
Land 1,829      
Buildings and Improvements 10,219      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,939      
Land 1,829      
Buildings and Improvements 13,158      
Total 14,987      
Accumulated Depreciation 12/31/2017 $ 5,788      
12055 E 49th Ave/4955 Peoria [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 298      
Buildings and Improvements 1,688      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 439      
Land 305      
Buildings and Improvements 2,120      
Total 2,425      
Accumulated Depreciation 12/31/2017 $ 1,038      
4940 - 4950 Paris [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 152      
Buildings and Improvements 861      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 207      
Land 156      
Buildings and Improvements 1,064      
Total 1,220      
Accumulated Depreciation 12/31/2017 $ 498      
7367 South Revere Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Centennial, CO      
Land $ 926      
Buildings and Improvements 5,124      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 977      
Land 934      
Buildings and Improvements 6,093      
Total 7,027      
Accumulated Depreciation 12/31/2017 $ 2,839      
8200 East Park Meadows Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lone Tree, CO      
Encumbrances $ 5,615      
Land 1,297      
Buildings and Improvements 7,348      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,158      
Land 1,304      
Buildings and Improvements 8,499      
Total 9,803      
Accumulated Depreciation 12/31/2017 $ 3,666      
3250 Quentin Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Aurora, CO      
Encumbrances $ 5,125      
Land 1,220      
Buildings and Improvements 6,911      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 815      
Land 1,230      
Buildings and Improvements 7,716      
Total 8,946      
Accumulated Depreciation 12/31/2017 $ 3,311      
8020 Southpark Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Littleton, CO      
Land $ 739      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,305      
Land 781      
Buildings and Improvements 3,263      
Total 4,044      
Accumulated Depreciation 12/31/2017 $ 1,309      
1130 W. 124th Ave. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westminster, CO      
Land $ 441      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,612      
Land 441      
Buildings and Improvements 3,612      
Total 4,053      
Accumulated Depreciation 12/31/2017 $ 1,370      
1070 W. 124th Ave. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westminster, CO      
Land $ 374      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,771      
Land 374      
Buildings and Improvements 2,771      
Total 3,145      
Accumulated Depreciation 12/31/2017 $ 1,110      
1020 W. 124th Ave. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westminster, CO      
Land $ 374      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,727      
Land 374      
Buildings and Improvements 2,727      
Total 3,101      
Accumulated Depreciation 12/31/2017 $ 1,132      
8810 W. 116th Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Broomfield, CO      
Land $ 312      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,815      
Land 370      
Buildings and Improvements 1,757      
Total 2,127      
Accumulated Depreciation 12/31/2017 $ 659      
960 W. 124th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westminster, CO      
Land $ 441      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,659      
Land 442      
Buildings and Improvements 3,658      
Total 4,100      
Accumulated Depreciation 12/31/2017 $ 1,505      
8820 W. 116th Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Broomfield, CO      
Land $ 338      
Buildings and Improvements 1,918      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 343      
Land 372      
Buildings and Improvements 2,227      
Total 2,599      
Accumulated Depreciation 12/31/2017 $ 819      
8835 W. 116th Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Broomfield, CO      
Land $ 1,151      
Buildings and Improvements 6,523      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,092      
Land 1,304      
Buildings and Improvements 7,462      
Total 8,766      
Accumulated Depreciation 12/31/2017 $ 2,874      
18150 E. 32nd Place [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Aurora, CO      
Land $ 563      
Buildings and Improvements 3,188      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 143      
Land 572      
Buildings and Improvements 3,322      
Total 3,894      
Accumulated Depreciation 12/31/2017 $ 1,311      
3400 Fraser Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Aurora, CO      
Encumbrances $ 2,009      
Land 616      
Buildings and Improvements 3,593      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (134)      
Land 620      
Buildings and Improvements 3,455      
Total 4,075      
Accumulated Depreciation 12/31/2017 $ 1,324      
7005 E. 46th Avenue Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Encumbrances $ 1,198      
Land 512      
Buildings and Improvements 2,025      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (107)      
Land 517      
Buildings and Improvements 1,913      
Total 2,430      
Accumulated Depreciation 12/31/2017 $ 719      
4001 Salazar Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Frederick, CO      
Encumbrances $ 3,714      
Land 1,271      
Buildings and Improvements 6,508      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (713)      
Land 1,276      
Buildings and Improvements 5,790      
Total 7,066      
Accumulated Depreciation 12/31/2017 $ 1,833      
5909-5915 N. Broadway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 495      
Buildings and Improvements 1,268      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 120      
Land 500      
Buildings and Improvements 1,383      
Total 1,883      
Accumulated Depreciation 12/31/2017 $ 783      
21301 E. 33rd Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Aurora, CO      
Land $ 2,860      
Buildings and Improvements 8,202      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 677      
Land 2,861      
Buildings and Improvements 8,878      
Total 11,739      
Accumulated Depreciation 12/31/2017 $ 336      
47461 Clipper [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Plymouth Township, MI      
Land $ 122      
Buildings and Improvements 723      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 103      
Land 122      
Buildings and Improvements 826      
Total 948      
Accumulated Depreciation 12/31/2017 $ 472      
449 Executive Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 125      
Buildings and Improvements 425      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 974      
Land 218      
Buildings and Improvements 1,306      
Total 1,524      
Accumulated Depreciation 12/31/2017 $ 1,214      
1416 Meijer Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 94      
Buildings and Improvements 394      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 477      
Land 121      
Buildings and Improvements 844      
Total 965      
Accumulated Depreciation 12/31/2017 $ 716      
1624 Meijer Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 236      
Buildings and Improvements 1,406      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,093      
Land 373      
Buildings and Improvements 2,362      
Total 2,735      
Accumulated Depreciation 12/31/2017 $ 2,190      
1972 Meijer Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 315      
Buildings and Improvements 1,301      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 787      
Land 372      
Buildings and Improvements 2,031      
Total 2,403      
Accumulated Depreciation 12/31/2017 $ 1,778      
1707 Northwood Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 95      
Buildings and Improvements 262      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,724      
Land 239      
Buildings and Improvements 1,842      
Total 2,081      
Accumulated Depreciation 12/31/2017 $ 1,703      
1826 Northwood Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 55      
Buildings and Improvements 208      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 472      
Land 103      
Buildings and Improvements 632      
Total 735      
Accumulated Depreciation 12/31/2017 $ 563      
1864 Northwood Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 57      
Buildings and Improvements 190      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 489      
Land 107      
Buildings and Improvements 629      
Total 736      
Accumulated Depreciation 12/31/2017 $ 578      
2730 Research Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 903      
Buildings and Improvements 4,215      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 829      
Land 903      
Buildings and Improvements 5,044      
Total 5,947      
Accumulated Depreciation 12/31/2017 $ 4,553      
2791 Research Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 557      
Buildings and Improvements 2,731      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 680      
Land 560      
Buildings and Improvements 3,408      
Total 3,968      
Accumulated Depreciation 12/31/2017 $ 2,699      
2871 Research Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 324      
Buildings and Improvements 1,487      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 412      
Land 327      
Buildings and Improvements 1,896      
Total 2,223      
Accumulated Depreciation 12/31/2017 $ 1,556      
2870 Technology Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 275      
Buildings and Improvements 1,262      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 356      
Land 279      
Buildings and Improvements 1,614      
Total 1,893      
Accumulated Depreciation 12/31/2017 $ 1,435      
2900 Technology Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 214      
Buildings and Improvements 977      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 627      
Land 219      
Buildings and Improvements 1,599      
Total 1,818      
Accumulated Depreciation 12/31/2017 $ 1,092      
2930 Technology Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 131      
Buildings and Improvements 594      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 432      
Land 138      
Buildings and Improvements 1,019      
Total 1,157      
Accumulated Depreciation 12/31/2017 $ 773      
2950 Technology Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 178      
Buildings and Improvements 819      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 368      
Land 185      
Buildings and Improvements 1,180      
Total 1,365      
Accumulated Depreciation 12/31/2017 $ 940      
23014 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 39      
Buildings and Improvements 203      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 191      
Land 56      
Buildings and Improvements 377      
Total 433      
Accumulated Depreciation 12/31/2017 $ 344      
23028 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 98      
Buildings and Improvements 507      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 295      
Land 125      
Buildings and Improvements 775      
Total 900      
Accumulated Depreciation 12/31/2017 $ 703      
23035 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 71      
Buildings and Improvements 355      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 300      
Land 93      
Buildings and Improvements 633      
Total 726      
Accumulated Depreciation 12/31/2017 $ 545      
23093 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 211      
Buildings and Improvements 1,024      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,337      
Land 295      
Buildings and Improvements 2,277      
Total 2,572      
Accumulated Depreciation 12/31/2017 $ 1,924      
23135 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 146      
Buildings and Improvements 701      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 312      
Land 158      
Buildings and Improvements 1,001      
Total 1,159      
Accumulated Depreciation 12/31/2017 $ 923      
23163 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 111      
Buildings and Improvements 513      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 393      
Land 138      
Buildings and Improvements 879      
Total 1,017      
Accumulated Depreciation 12/31/2017 $ 800      
23177 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 175      
Buildings and Improvements 1,007      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 689      
Land 254      
Buildings and Improvements 1,617      
Total 1,871      
Accumulated Depreciation 12/31/2017 $ 1,464      
23370 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 59      
Buildings and Improvements 233      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 209      
Land 66      
Buildings and Improvements 435      
Total 501      
Accumulated Depreciation 12/31/2017 $ 382      
4400 Purks Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Auburn Hills, MI      
Land $ 602      
Buildings and Improvements 3,410      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,995      
Land 612      
Buildings and Improvements 7,395      
Total 8,007      
Accumulated Depreciation 12/31/2017 $ 3,703      
12707 Eckles Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Plymouth Township, MI      
Land $ 255      
Buildings and Improvements 1,445      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 241      
Land 267      
Buildings and Improvements 1,674      
Total 1,941      
Accumulated Depreciation 12/31/2017 $ 854      
32975 Capitol Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Livonia, MI      
Land $ 135      
Buildings and Improvements 748      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (174)      
Land 77      
Buildings and Improvements 632      
Total 709      
Accumulated Depreciation 12/31/2017 $ 344      
11923 Brookfield Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Livonia, MI      
Land $ 120      
Buildings and Improvements 665      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (314)      
Land 32      
Buildings and Improvements 439      
Total 471      
Accumulated Depreciation 12/31/2017 $ 297      
47711 Clipper Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Plymouth Township, MI      
Land $ 539      
Buildings and Improvements 2,983      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 579      
Land 575      
Buildings and Improvements 3,526      
Total 4,101      
Accumulated Depreciation 12/31/2017 $ 1,623      
12874 Westmore Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Livonia, MI      
Land $ 137      
Buildings and Improvements 761      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (234)      
Land 58      
Buildings and Improvements 606      
Total 664      
Accumulated Depreciation 12/31/2017 $ 346      
1775 Bellingham [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 344      
Buildings and Improvements 1,902      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 339      
Land 367      
Buildings and Improvements 2,218      
Total 2,585      
Accumulated Depreciation 12/31/2017 $ 1,066      
1785 East Maple [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 92      
Buildings and Improvements 507      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 210      
Land 98      
Buildings and Improvements 711      
Total 809      
Accumulated Depreciation 12/31/2017 $ 319      
980 Chicago [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 206      
Buildings and Improvements 1,141      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 333      
Land 220      
Buildings and Improvements 1,460      
Total 1,680      
Accumulated Depreciation 12/31/2017 $ 664      
1885 Enterprise Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 209      
Buildings and Improvements 1,158      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 589      
Land 223      
Buildings and Improvements 1,733      
Total 1,956      
Accumulated Depreciation 12/31/2017 $ 849      
1935-55 Enterprise Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 1,285      
Buildings and Improvements 7,144      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,322      
Land 1,371      
Buildings and Improvements 8,380      
Total 9,751      
Accumulated Depreciation 12/31/2017 $ 3,978      
5500 Enterprise Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Warren, MI      
Land $ 675      
Buildings and Improvements 3,737      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 772      
Land 721      
Buildings and Improvements 4,463      
Total 5,184      
Accumulated Depreciation 12/31/2017 $ 2,106      
750 Chicago Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 323      
Buildings and Improvements 1,790      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 404      
Land 345      
Buildings and Improvements 2,172      
Total 2,517      
Accumulated Depreciation 12/31/2017 $ 1,050      
800 Chicago Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 283      
Buildings and Improvements 1,567      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 380      
Land 302      
Buildings and Improvements 1,928      
Total 2,230      
Accumulated Depreciation 12/31/2017 $ 913      
850 Chicago Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 183      
Buildings and Improvements 1,016      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 279      
Land 196      
Buildings and Improvements 1,282      
Total 1,478      
Accumulated Depreciation 12/31/2017 $ 587      
4872 S. Lapeer Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lake Orion Twsp, MI      
Land $ 1,342      
Buildings and Improvements 5,441      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,214      
Land 1,412      
Buildings and Improvements 6,585      
Total 7,997      
Accumulated Depreciation 12/31/2017 $ 3,388      
1400 Allen Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 209      
Buildings and Improvements 1,154      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 380      
Land 212      
Buildings and Improvements 1,531      
Total 1,743      
Accumulated Depreciation 12/31/2017 $ 605      
1408 Allen Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 151      
Buildings and Improvements 834      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 121      
Land 153      
Buildings and Improvements 953      
Total 1,106      
Accumulated Depreciation 12/31/2017 $ 404      
28435 Automation Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Wixom, MI      
Land $ 621      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,661      
Land 628      
Buildings and Improvements 3,654      
Total 4,282      
Accumulated Depreciation 12/31/2017 $ 1,193      
32200 N Avis Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Madison Heights, MI      
Land $ 503      
Buildings and Improvements 3,367      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (1,452)      
Land 195      
Buildings and Improvements 2,223      
Total 2,418      
Accumulated Depreciation 12/31/2017 $ 859      
100 Kay Industrial Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orion Township, MI      
Land $ 677      
Buildings and Improvements 2,018      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 164      
Land 685      
Buildings and Improvements 2,174      
Total 2,859      
Accumulated Depreciation 12/31/2017 $ 1,145      
42555 Merrill Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Sterling Heights, MI      
Land $ 1,080      
Buildings and Improvements 2,300      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,487      
Land 1,090      
Buildings and Improvements 5,777      
Total 6,867      
Accumulated Depreciation 12/31/2017 $ 2,688      
200 Northpointe Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orion Township, MI      
Land $ 723      
Buildings and Improvements 2,063      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (456)      
Land 734      
Buildings and Improvements 1,596      
Total 2,330      
Accumulated Depreciation 12/31/2017 $ 687      
3351 Rauch St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 272      
Buildings and Improvements 1,541      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 581      
Land 278      
Buildings and Improvements 2,116      
Total 2,394      
Accumulated Depreciation 12/31/2017 $ 948      
3801-3851 Yale St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 413      
Buildings and Improvements 2,343      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,505      
Land 425      
Buildings and Improvements 3,836      
Total 4,261      
Accumulated Depreciation 12/31/2017 $ 1,492      
3337-3347 Rauch Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 227      
Buildings and Improvements 1,287      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 433      
Land 233      
Buildings and Improvements 1,714      
Total 1,947      
Accumulated Depreciation 12/31/2017 $ 775      
8505 N Loop East [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 439      
Buildings and Improvements 2,489      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 575      
Land 449      
Buildings and Improvements 3,054      
Total 3,503      
Accumulated Depreciation 12/31/2017 $ 1,459      
4749-4799 Eastpark Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 594      
Buildings and Improvements 3,368      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,220      
Land 611      
Buildings and Improvements 4,571      
Total 5,182      
Accumulated Depreciation 12/31/2017 $ 2,195      
4851 Homestead Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Encumbrances $ 2,426      
Land 491      
Buildings and Improvements 2,782      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,342      
Land 504      
Buildings and Improvements 4,111      
Total 4,615      
Accumulated Depreciation 12/31/2017 $ 1,928      
3365-3385 Rauch Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 284      
Buildings and Improvements 1,611      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 487      
Land 290      
Buildings and Improvements 2,092      
Total 2,382      
Accumulated Depreciation 12/31/2017 $ 945      
5050 Campbell Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 461      
Buildings and Improvements 2,610      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,078      
Land 470      
Buildings and Improvements 3,679      
Total 4,149      
Accumulated Depreciation 12/31/2017 $ 1,664      
4300 Pine Timbers [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Encumbrances $ 2,282      
Land 489      
Buildings and Improvements 2,769      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 725      
Land 499      
Buildings and Improvements 3,484      
Total 3,983      
Accumulated Depreciation 12/31/2017 $ 1,729      
2500-2530 Fairway Park Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 766      
Buildings and Improvements 4,342      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,141      
Land 792      
Buildings and Improvements 6,457      
Total 7,249      
Accumulated Depreciation 12/31/2017 $ 2,844      
6550 Longpointe [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 362      
Buildings and Improvements 2,050      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,025      
Land 370      
Buildings and Improvements 3,067      
Total 3,437      
Accumulated Depreciation 12/31/2017 $ 1,400      
1815 Turning Basin Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 487      
Buildings and Improvements 2,761      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,871      
Land 531      
Buildings and Improvements 4,588      
Total 5,119      
Accumulated Depreciation 12/31/2017 $ 1,898      
1819 Turning Basin Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 231      
Buildings and Improvements 1,308      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 896      
Land 251      
Buildings and Improvements 2,184      
Total 2,435      
Accumulated Depreciation 12/31/2017 $ 946      
1805 Turning Basin Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 564      
Buildings and Improvements 3,197      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,489      
Land 616      
Buildings and Improvements 5,634      
Total 6,250      
Accumulated Depreciation 12/31/2017 $ 2,425      
11505 State Highway 225 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) La Porte, TX      
Land $ 940      
Buildings and Improvements 4,675      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 10      
Land 940      
Buildings and Improvements 4,685      
Total 5,625      
Accumulated Depreciation 12/31/2017 $ 1,645      
1500 E. Main Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) La Porte, TX      
Land $ 201      
Buildings and Improvements 1,328      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (91)      
Land 204      
Buildings and Improvements 1,234      
Total 1,438      
Accumulated Depreciation 12/31/2017 $ 1,060      
7230-7238 Wynnwood [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 254      
Buildings and Improvements 764      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 203      
Land 259      
Buildings and Improvements 962      
Total 1,221      
Accumulated Depreciation 12/31/2017 $ 536      
7240-7248 Wynnwood [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 271      
Buildings and Improvements 726      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 333      
Land 276      
Buildings and Improvements 1,054      
Total 1,330      
Accumulated Depreciation 12/31/2017 $ 508      
7250-7260 Wynnwood [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 200      
Buildings and Improvements 481      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,501      
Land 203      
Buildings and Improvements 1,979      
Total 2,182      
Accumulated Depreciation 12/31/2017 $ 529      
6400 Long Point [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 188      
Buildings and Improvements 898      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 110      
Land 188      
Buildings and Improvements 1,008      
Total 1,196      
Accumulated Depreciation 12/31/2017 $ 424      
7967 Blankenship [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 307      
Buildings and Improvements 1,166      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 337      
Land 307      
Buildings and Improvements 1,503      
Total 1,810      
Accumulated Depreciation 12/31/2017 $ 620      
8800 City Park Look East [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 3,717      
Buildings and Improvements 19,237      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (535)      
Land 3,717      
Buildings and Improvements 18,702      
Total 22,419      
Accumulated Depreciation 12/31/2017 $ 4,785      
4800 West Greens Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 3,350      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 17,772      
Land 3,312      
Buildings and Improvements 17,810      
Total 21,122      
Accumulated Depreciation 12/31/2017 $ 2,020      
611 East Sam Houston Parkway S [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pasadena, TX      
Land $ 1,970      
Buildings and Improvements 7,431      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 874      
Land 2,011      
Buildings and Improvements 8,264      
Total 10,275      
Accumulated Depreciation 12/31/2017 $ 484      
619 East Sam Houston Parkway S [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pasadena, TX      
Land $ 2,879      
Buildings and Improvements 11,713      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 772      
Land 2,872      
Buildings and Improvements 12,492      
Total 15,364      
Accumulated Depreciation 12/31/2017 $ 752      
2900 N Shadeland Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 2,057      
Buildings and Improvements 13,565      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,946      
Land 2,057      
Buildings and Improvements 20,511      
Total 22,568      
Accumulated Depreciation 12/31/2017 $ 9,376      
1445 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 459      
Buildings and Improvements 2,603      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,416      
Land 476      
Buildings and Improvements 4,002      
Total 4,478      
Accumulated Depreciation 12/31/2017 $ 1,811      
1440 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 665      
Buildings and Improvements 3,770      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 880      
Land 685      
Buildings and Improvements 4,630      
Total 5,315      
Accumulated Depreciation 12/31/2017 $ 2,330      
1240 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 247      
Buildings and Improvements 1,402      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 502      
Land 258      
Buildings and Improvements 1,893      
Total 2,151      
Accumulated Depreciation 12/31/2017 $ 920      
1345 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 586      
Buildings and Improvements 3,321      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,671      
Land 601      
Buildings and Improvements 4,977      
Total 5,578      
Accumulated Depreciation 12/31/2017 $ 2,411      
1350 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 205      
Buildings and Improvements 1,161      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 348      
Land 212      
Buildings and Improvements 1,502      
Total 1,714      
Accumulated Depreciation 12/31/2017 $ 734      
1504 Sadlier Circle South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 219      
Buildings and Improvements 1,238      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 53      
Land 115      
Buildings and Improvements 1,395      
Total 1,510      
Accumulated Depreciation 12/31/2017 $ 706      
1335 Sadlier Circle East [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 81      
Buildings and Improvements 460      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 187      
Land 86      
Buildings and Improvements 642      
Total 728      
Accumulated Depreciation 12/31/2017 $ 314      
6951 East 30th St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 256      
Buildings and Improvements 1,449      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 419      
Land 265      
Buildings and Improvements 1,859      
Total 2,124      
Accumulated Depreciation 12/31/2017 $ 907      
6701 East 30th St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 78      
Buildings and Improvements 443      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 98      
Land 82      
Buildings and Improvements 537      
Total 619      
Accumulated Depreciation 12/31/2017 $ 284      
6737 East 30th St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Encumbrances $ 1,975      
Land 385      
Buildings and Improvements 2,181      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 641      
Land 398      
Buildings and Improvements 2,809      
Total 3,207      
Accumulated Depreciation 12/31/2017 $ 1,352      
6555 East 30th St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 484      
Buildings and Improvements 4,760      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,576      
Land 484      
Buildings and Improvements 7,336      
Total 7,820      
Accumulated Depreciation 12/31/2017 $ 3,268      
7901 West 21st St. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 1,048      
Buildings and Improvements 6,027      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 376      
Land 1,048      
Buildings and Improvements 6,403      
Total 7,451      
Accumulated Depreciation 12/31/2017 $ 3,172      
1225 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 60      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 431      
Land 68      
Buildings and Improvements 423      
Total 491      
Accumulated Depreciation 12/31/2017 $ 206      
6751 E 30th St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Encumbrances $ 2,453      
Land 728      
Buildings and Improvements 2,837      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 417      
Land 741      
Buildings and Improvements 3,241      
Total 3,982      
Accumulated Depreciation 12/31/2017 $ 1,606      
6575 East 30th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Encumbrances $ 1,296      
Land 118      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,986      
Land 128      
Buildings and Improvements 1,976      
Total 2,104      
Accumulated Depreciation 12/31/2017 $ 922      
6585 East 30th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Encumbrances $ 2,106      
Land 196      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,223      
Land 196      
Buildings and Improvements 3,223      
Total 3,419      
Accumulated Depreciation 12/31/2017 $ 1,530      
14425 Bergen Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Noblesville, IN      
Land $ 647      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,730      
Land 743      
Buildings and Improvements 3,634      
Total 4,377      
Accumulated Depreciation 12/31/2017 $ 1,077      
6635 E 30th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 466      
Buildings and Improvements 3,093      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 60      
Land 466      
Buildings and Improvements 3,153      
Total 3,619      
Accumulated Depreciation 12/31/2017 $ 201      
4700 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 908      
Buildings and Improvements 1,883      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 8      
Land 912      
Buildings and Improvements 1,887      
Total 2,799      
Accumulated Depreciation 12/31/2017 $ 747      
4710 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 830      
Buildings and Improvements 2,722      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 12      
Land 834      
Buildings and Improvements 2,730      
Total 3,564      
Accumulated Depreciation 12/31/2017 $ 835      
4720 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 937      
Buildings and Improvements 2,455      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 373      
Land 942      
Buildings and Improvements 2,823      
Total 3,765      
Accumulated Depreciation 12/31/2017 $ 1,039      
4740 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 1,107      
Buildings and Improvements 3,111      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 16      
Land 1,112      
Buildings and Improvements 3,122      
Total 4,234      
Accumulated Depreciation 12/31/2017 $ 968      
4750 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 947      
Buildings and Improvements 3,079      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 353      
Land 951      
Buildings and Improvements 3,428      
Total 4,379      
Accumulated Depreciation 12/31/2017 $ 1,008      
4800 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 1,092      
Buildings and Improvements 3,308      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 135      
Land 1,097      
Buildings and Improvements 3,438      
Total 4,535      
Accumulated Depreciation 12/31/2017 $ 1,005      
6891 NW 74th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Medley, FL      
Land $ 857      
Buildings and Improvements 3,428      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,295      
Land 864      
Buildings and Improvements 7,716      
Total 8,580      
Accumulated Depreciation 12/31/2017 $ 2,807      
12601 &12605 NW 115th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Medley, FL      
Land $ 2,316      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 423      
Land 762      
Buildings and Improvements 1,977      
Total 2,739      
Accumulated Depreciation 12/31/2017 $ 421      
1351 NW 78th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Doral, FL      
Land $ 3,111      
Buildings and Improvements 4,634      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (383)      
Land 3,111      
Buildings and Improvements 4,251      
Total 7,362      
Accumulated Depreciation 12/31/2017 $ 283      
2500 N.W. 19th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pompano Beach, FL      
Land $ 8,824      
Buildings and Improvements 11,660      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 17      
Land 8,824      
Buildings and Improvements 11,677      
Total 20,501      
Accumulated Depreciation 12/31/2017 $ 231      
5355 South Westridge Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) New Berlin, WI      
Encumbrances $ 4,232      
Land 1,630      
Buildings and Improvements 7,058      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (105)      
Land 1,646      
Buildings and Improvements 6,937      
Total 8,583      
Accumulated Depreciation 12/31/2017 $ 2,129      
17005 W. Ryerson Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) New Berlin, WI      
Encumbrances $ 2,558      
Land 403      
Buildings and Improvements 3,647      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 415      
Land 405      
Buildings and Improvements 4,060      
Total 4,465      
Accumulated Depreciation 12/31/2017 $ 2,169      
1500 Peebles Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Center, WI      
Land $ 1,577      
Buildings and Improvements 1,018      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (441)      
Land 1,528      
Buildings and Improvements 626      
Total 2,154      
Accumulated Depreciation 12/31/2017 $ 565      
16600 West Glendale Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) New Berlin, WI      
Encumbrances $ 1,892      
Land 704      
Buildings and Improvements 1,923      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 972      
Land 715      
Buildings and Improvements 2,884      
Total 3,599      
Accumulated Depreciation 12/31/2017 $ 2,121      
N58W15380 Shawn Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Menomonee Falls, WI      
Land $ 1,188      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 16,931      
Land 1,204      
Buildings and Improvements 16,915      
Total 18,119      
Accumulated Depreciation 12/31/2017 $ 4,641      
6201 West 111th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Bloomington, MN      
Encumbrances $ 2,110      
Land 1,358      
Buildings and Improvements 8,622      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13,464      
Land 1,519      
Buildings and Improvements 21,925      
Total 23,444      
Accumulated Depreciation 12/31/2017 $ 13,390      
1030 Lone Oak Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eagan, MN      
Encumbrances $ 2,105      
Land 456      
Buildings and Improvements 2,703      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 847      
Land 456      
Buildings and Improvements 3,550      
Total 4,006      
Accumulated Depreciation 12/31/2017 $ 1,927      
1060 Lone Oak Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eagan, MN      
Encumbrances $ 2,690      
Land 624      
Buildings and Improvements 3,700      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 795      
Land 624      
Buildings and Improvements 4,495      
Total 5,119      
Accumulated Depreciation 12/31/2017 $ 2,442      
5400 Nathan Lane [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Plymouth, MN      
Land $ 749      
Buildings and Improvements 4,461      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 884      
Land 757      
Buildings and Improvements 5,337      
Total 6,094      
Accumulated Depreciation 12/31/2017 $ 2,899      
6655 Wedgewood Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Maple Grove, MN      
Land $ 1,466      
Buildings and Improvements 8,342      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5,870      
Land 1,466      
Buildings and Improvements 14,212      
Total 15,678      
Accumulated Depreciation 12/31/2017 $ 7,014      
10120 W 76th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eden Prairie, MN      
Land $ 315      
Buildings and Improvements 1,804      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,043      
Land 315      
Buildings and Improvements 2,847      
Total 3,162      
Accumulated Depreciation 12/31/2017 $ 1,411      
12155 Nicollet Ave. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Burnsville, MN      
Land $ 286      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,957      
Land 288      
Buildings and Improvements 1,955      
Total 2,243      
Accumulated Depreciation 12/31/2017 $ 980      
5775 12th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shakopee, MN      
Encumbrances $ 3,611      
Land 590      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5,712      
Land 590      
Buildings and Improvements 5,712      
Total 6,302      
Accumulated Depreciation 12/31/2017 $ 1,934      
1157 Valley Park Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shakopee, MN      
Encumbrances $ 3,989      
Land 760      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7,330      
Land 888      
Buildings and Improvements 7,202      
Total 8,090      
Accumulated Depreciation 12/31/2017 $ 2,971      
9600 West 76th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eden Prairie, MN      
Encumbrances $ 2,008      
Land 1,000      
Buildings and Improvements 2,450      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 98      
Land 1,034      
Buildings and Improvements 2,514      
Total 3,548      
Accumulated Depreciation 12/31/2017 $ 805      
9700 West 76th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eden Prairie, MN      
Encumbrances $ 2,165      
Land 1,000      
Buildings and Improvements 2,709      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 117      
Land 1,038      
Buildings and Improvements 2,788      
Total 3,826      
Accumulated Depreciation 12/31/2017 $ 876      
7600 69th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Greenfield, MN      
Land $ 1,500      
Buildings and Improvements 8,328      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (468)      
Land 1,510      
Buildings and Improvements 7,850      
Total 9,360      
Accumulated Depreciation 12/31/2017 $ 2,147      
5017 Boone Avenue North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) New Hope, MN      
Land $ 1,000      
Buildings and Improvements 1,599      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 581      
Land 1,009      
Buildings and Improvements 2,171      
Total 3,180      
Accumulated Depreciation 12/31/2017 $ 1,225      
1087 Park Place [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shakopee, MN      
Encumbrances $ 3,346      
Land 1,195      
Buildings and Improvements 4,891      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (246)      
Land 1,198      
Buildings and Improvements 4,642      
Total 5,840      
Accumulated Depreciation 12/31/2017 $ 1,505      
5391 12th Avenue SE [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shakopee, MN      
Land $ 1,392      
Buildings and Improvements 8,149      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (294)      
Land 1,395      
Buildings and Improvements 7,852      
Total 9,247      
Accumulated Depreciation 12/31/2017 $ 2,475      
4701 Valley Industrial Blvd S [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shakopee, MN      
Encumbrances $ 4,744      
Land 1,296      
Buildings and Improvements 7,157      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (172)      
Land 1,299      
Buildings and Improvements 6,982      
Total 8,281      
Accumulated Depreciation 12/31/2017 $ 3,400      
6455 City West Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eden Prairie, MN      
Land $ 659      
Buildings and Improvements 3,189      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,274      
Land 665      
Buildings and Improvements 4,457      
Total 5,122      
Accumulated Depreciation 12/31/2017 $ 1,811      
7035 Winnetka Avene North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Brooklyn Park, MN      
Encumbrances $ 4,343      
Land 1,275      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7,533      
Land 1,343      
Buildings and Improvements 7,465      
Total 8,808      
Accumulated Depreciation 12/31/2017 $ 2,004      
139 Eva Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) St. Paul, MN      
Land $ 2,132      
Buildings and Improvements 3,105      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (286)      
Land 2,175      
Buildings and Improvements 2,776      
Total 4,951      
Accumulated Depreciation 12/31/2017 $ 826      
21900 Dodd Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lakeville, MN      
Encumbrances $ 9,009      
Land 2,289      
Buildings and Improvements 7,952      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 2,289      
Buildings and Improvements 7,952      
Total 10,241      
Accumulated Depreciation 12/31/2017 $ 2,720      
375 Rivertown Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Woodbury, MN      
Encumbrances $ 7,198      
Land 2,635      
Buildings and Improvements 8,157      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,197      
Land 2,635      
Buildings and Improvements 9,354      
Total 11,989      
Accumulated Depreciation 12/31/2017 $ 1,714      
935 Aldrin Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eagan, MN      
Encumbrances $ 5,341      
Land 2,096      
Buildings and Improvements 7,884      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 293      
Land 2,096      
Buildings and Improvements 8,177      
Total 10,273      
Accumulated Depreciation 12/31/2017 $ 1,218      
7050 Winnetka Avenue North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Brooklyn Park, MN      
Encumbrances $ 0      
Land 1,623      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7,567      
Land 1,634      
Buildings and Improvements 7,556      
Total 9,190      
Accumulated Depreciation 12/31/2017 $ 605      
7051 West Broadway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Brooklyn Park, MN      
Encumbrances $ 3,733      
Land 1,275      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5,828      
Land 1,279      
Buildings and Improvements 5,824      
Total 7,103      
Accumulated Depreciation 12/31/2017 $ 446      
1931 Air Lane Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Nashville, TN      
Encumbrances $ 1,881      
Land 489      
Buildings and Improvements 2,785      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 305      
Land 493      
Buildings and Improvements 3,086      
Total 3,579      
Accumulated Depreciation 12/31/2017 $ 1,537      
4640 Cummings Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Nashville, TN      
Land $ 360      
Buildings and Improvements 2,040      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 625      
Land 365      
Buildings and Improvements 2,660      
Total 3,025      
Accumulated Depreciation 12/31/2017 $ 1,112      
1740 River Hills Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Nashville, TN      
Encumbrances $ 2,686      
Land 848      
Buildings and Improvements 4,383      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 746      
Land 888      
Buildings and Improvements 5,089      
Total 5,977      
Accumulated Depreciation 12/31/2017 $ 2,656      
211 Ellery Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Nashville, TN      
Encumbrances $ 2,008      
Land 606      
Buildings and Improvements 3,192      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 23      
Land 616      
Buildings and Improvements 3,205      
Total 3,821      
Accumulated Depreciation 12/31/2017 $ 1,232      
130 Maddox Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mount Juliet, TN      
Encumbrances $ 15,821      
Land 1,778      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 23,910      
Land 1,778      
Buildings and Improvements 23,910      
Total 25,688      
Accumulated Depreciation 12/31/2017 $ 5,326      
14 World's Fair Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Franklin, NJ      
Land $ 483      
Buildings and Improvements 2,735      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 728      
Land 503      
Buildings and Improvements 3,443      
Total 3,946      
Accumulated Depreciation 12/31/2017 $ 1,632      
12 World's Fair Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Franklin, NJ      
Land $ 572      
Buildings and Improvements 3,240      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 844      
Land 593      
Buildings and Improvements 4,063      
Total 4,656      
Accumulated Depreciation 12/31/2017 $ 1,908      
22 World's Fair Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Franklin, NJ      
Land $ 364      
Buildings and Improvements 2,064      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 547      
Land 375      
Buildings and Improvements 2,600      
Total 2,975      
Accumulated Depreciation 12/31/2017 $ 1,206      
26 World's Fair Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Franklin, NJ      
Land $ 361      
Buildings and Improvements 2,048      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 616      
Land 377      
Buildings and Improvements 2,648      
Total 3,025      
Accumulated Depreciation 12/31/2017 $ 1,234      
24 World's Fair Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Franklin, NJ      
Land $ 347      
Buildings and Improvements 1,968      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 581      
Land 362      
Buildings and Improvements 2,534      
Total 2,896      
Accumulated Depreciation 12/31/2017 $ 1,230      
20 World's Fair Drive Lot 13 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Somerset, NJ      
Land $ 9      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,629      
Land 691      
Buildings and Improvements 1,947      
Total 2,638      
Accumulated Depreciation 12/31/2017 $ 789      
45 Route 46 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 969      
Buildings and Improvements 5,491      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 966      
Land 978      
Buildings and Improvements 6,448      
Total 7,426      
Accumulated Depreciation 12/31/2017 $ 2,773      
43 Route 46 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 474      
Buildings and Improvements 2,686      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 438      
Land 479      
Buildings and Improvements 3,119      
Total 3,598      
Accumulated Depreciation 12/31/2017 $ 1,311      
39 Route 46 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 260      
Buildings and Improvements 1,471      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 243      
Land 262      
Buildings and Improvements 1,712      
Total 1,974      
Accumulated Depreciation 12/31/2017 $ 719      
26 Chapin Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 956      
Buildings and Improvements 5,415      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 526      
Land 965      
Buildings and Improvements 5,932      
Total 6,897      
Accumulated Depreciation 12/31/2017 $ 2,566      
30 Chapin Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 960      
Buildings and Improvements 5,440      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 471      
Land 970      
Buildings and Improvements 5,901      
Total 6,871      
Accumulated Depreciation 12/31/2017 $ 2,541      
20 Hook Mountain Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 1,507      
Buildings and Improvements 8,542      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,401      
Land 1,534      
Buildings and Improvements 9,916      
Total 11,450      
Accumulated Depreciation 12/31/2017 $ 4,140      
30 Hook Mountain Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 389      
Buildings and Improvements 2,206      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 520      
Land 396      
Buildings and Improvements 2,719      
Total 3,115      
Accumulated Depreciation 12/31/2017 $ 1,238      
16 Chapin Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 885      
Buildings and Improvements 5,015      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 611      
Land 901      
Buildings and Improvements 5,610      
Total 6,511      
Accumulated Depreciation 12/31/2017 $ 2,337      
20 Chapin Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 1,134      
Buildings and Improvements 6,426      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 590      
Land 1,154      
Buildings and Improvements 6,996      
Total 8,150      
Accumulated Depreciation 12/31/2017 $ 2,929      
2500 Main Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Sayreville, NJ      
Land $ 944      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,575      
Land 944      
Buildings and Improvements 4,575      
Total 5,519      
Accumulated Depreciation 12/31/2017 $ 1,740      
2400 Main Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Sayreville, NJ      
Land $ 996      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5,448      
Land 996      
Buildings and Improvements 5,448      
Total 6,444      
Accumulated Depreciation 12/31/2017 $ 1,837      
7851 Airport Highway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pennsauken, NJ      
Land $ 160      
Buildings and Improvements 508      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 328      
Land 162      
Buildings and Improvements 834      
Total 996      
Accumulated Depreciation 12/31/2017 $ 399      
103 Central Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mt. Laurel, NJ      
Land $ 610      
Buildings and Improvements 1,847      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,617      
Land 619      
Buildings and Improvements 3,455      
Total 4,074      
Accumulated Depreciation 12/31/2017 $ 1,628      
309-319 Pierce Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Somerset, NJ      
Encumbrances $ 2,937      
Land 1,300      
Buildings and Improvements 4,628      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 606      
Land 1,309      
Buildings and Improvements 5,225      
Total 6,534      
Accumulated Depreciation 12/31/2017 $ 1,825      
7890 Airport Hwy/7015 Central [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pennsauken, NJ      
Land $ 300      
Buildings and Improvements 989      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 495      
Land 425      
Buildings and Improvements 1,359      
Total 1,784      
Accumulated Depreciation 12/31/2017 $ 1,031      
400 Cedar Lane [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Florence Township, NJ      
Land $ 9,730      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 26,173      
Land 9,730      
Buildings and Improvements 26,173      
Total 35,903      
Accumulated Depreciation 12/31/2017 $ 697      
301 Bordentown Hedding Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Bordenrown, NJ      
Land $ 3,983      
Buildings and Improvements 15,881      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 3,983      
Buildings and Improvements 15,881      
Total 19,864      
Accumulated Depreciation 12/31/2017 $ 238      
6301 Hazeltine National Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orlando, FL      
Land $ 909      
Buildings and Improvements 4,613      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 222      
Land 920      
Buildings and Improvements 4,824      
Total 5,744      
Accumulated Depreciation 12/31/2017 $ 1,614      
8751 Skinner Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orlando, FL      
Encumbrances $ 4,518      
Land 1,691      
Buildings and Improvements 7,249      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 30      
Land 1,692      
Buildings and Improvements 7,278      
Total 8,970      
Accumulated Depreciation 12/31/2017 $ 487      
4473 Shader Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orlando, FL      
Land $ 2,094      
Buildings and Improvements 10,444      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 56      
Land 2,094      
Buildings and Improvements 10,500      
Total 12,594      
Accumulated Depreciation 12/31/2017 $ 587      
550 Gills Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orlando, FL      
Land $ 1,321      
Buildings and Improvements 6,176      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4      
Land 1,321      
Buildings and Improvements 6,180      
Total 7,501      
Accumulated Depreciation 12/31/2017 $ 115      
450 Gills Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orlando, FL      
Land $ 1,031      
Buildings and Improvements 6,406      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 1,031      
Buildings and Improvements 6,406      
Total 7,437      
Accumulated Depreciation 12/31/2017 $ 47      
1045 South Edward Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tempe, AZ      
Land $ 390      
Buildings and Improvements 2,160      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 398      
Land 396      
Buildings and Improvements 2,552      
Total 2,948      
Accumulated Depreciation 12/31/2017 $ 1,153      
50 South 56th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Chandler, AZ      
Encumbrances $ 3,050      
Land 1,206      
Buildings and Improvements 3,218      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,379      
Land 1,252      
Buildings and Improvements 4,551      
Total 5,803      
Accumulated Depreciation 12/31/2017 $ 1,890      
7102 W. Roosevelt [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Phoenix, AZ      
Encumbrances $ 4,863      
Land 1,613      
Buildings and Improvements 6,451      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 424      
Land 1,620      
Buildings and Improvements 6,868      
Total 8,488      
Accumulated Depreciation 12/31/2017 $ 3,014      
4137 West Adams Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Phoenix, AZ      
Encumbrances $ 2,044      
Land 990      
Buildings and Improvements 2,661      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 239      
Land 1,038      
Buildings and Improvements 2,852      
Total 3,890      
Accumulated Depreciation 12/31/2017 $ 1,222      
245 W. Lodge [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tempe, AZ      
Land $ 898      
Buildings and Improvements 3,066      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (2,251)      
Land 362      
Buildings and Improvements 1,351      
Total 1,713      
Accumulated Depreciation 12/31/2017 $ 500      
1590 E Riverview Dr. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Phoenix, AZ      
Encumbrances $ 4,517      
Land 1,293      
Buildings and Improvements 5,950      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 91      
Land 1,292      
Buildings and Improvements 6,042      
Total 7,334      
Accumulated Depreciation 12/31/2017 $ 1,660      
14131 N. Rio Vista Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Peoria, AZ      
Land $ 2,563      
Buildings and Improvements 9,388      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 175      
Land 2,563      
Buildings and Improvements 9,563      
Total 12,126      
Accumulated Depreciation 12/31/2017 $ 2,740      
8716 W. Ludlow Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Peoria, AZ      
Land $ 2,709      
Buildings and Improvements 10,970      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,196      
Land 2,709      
Buildings and Improvements 12,166      
Total 14,875      
Accumulated Depreciation 12/31/2017 $ 3,501      
3815 W. Washington St. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Phoenix, AZ      
Encumbrances $ 3,133      
Land 1,675      
Buildings and Improvements 4,514      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 406      
Land 1,719      
Buildings and Improvements 4,876      
Total 6,595      
Accumulated Depreciation 12/31/2017 $ 1,414      
9180 W. Buckeye Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tolleson, AZ      
Land $ 1,904      
Buildings and Improvements 6,805      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,610      
Land 1,923      
Buildings and Improvements 9,396      
Total 11,319      
Accumulated Depreciation 12/31/2017 $ 2,525      
8644 West Ludlow Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Peoria, AZ      
Land $ 1,726      
Buildings and Improvements 7,216      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 1,726      
Buildings and Improvements 7,216      
Total 8,942      
Accumulated Depreciation 12/31/2017 $ 815      
8606 West Ludlow Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Peoria, AZ      
Land $ 956      
Buildings and Improvements 2,668      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 123      
Land 956      
Buildings and Improvements 2,791      
Total 3,747      
Accumulated Depreciation 12/31/2017 $ 327      
8679 West Ludlow Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Peoria, AZ      
Land $ 672      
Buildings and Improvements 2,791      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 672      
Buildings and Improvements 2,791      
Total 3,463      
Accumulated Depreciation 12/31/2017 $ 322      
94th Avenue and Buckeye Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tolleson, AZ      
Land $ 4,315      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 16,131      
Land 4,315      
Buildings and Improvements 16,131      
Total 20,446      
Accumulated Depreciation 12/31/2017 $ 825      
16601 West Sells Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Goodyear, AZ      
Land $ 24,743      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 19,086      
Land 24,803      
Buildings and Improvements 19,026      
Total 43,829      
Accumulated Depreciation 12/31/2017 $ 398      
1901 Raymond Ave SW [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Renton, WA      
Land $ 4,458      
Buildings and Improvements 2,659      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 532      
Land 4,594      
Buildings and Improvements 3,055      
Total 7,649      
Accumulated Depreciation 12/31/2017 $ 944      
19014 64th Avenue South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kent, WA      
Encumbrances $ 2,891      
Land 1,990      
Buildings and Improvements 3,979      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 464      
Land 2,042      
Buildings and Improvements 4,391      
Total 6,433      
Accumulated Depreciation 12/31/2017 $ 1,679      
18640 68th Avenue South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kent, WA      
Land $ 1,218      
Buildings and Improvements 1,950      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 310      
Land 1,258      
Buildings and Improvements 2,220      
Total 3,478      
Accumulated Depreciation 12/31/2017 $ 883      
1944 Vista Bella Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Encumbrances $ 3,070      
Land 1,746      
Buildings and Improvements 3,148      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 465      
Land 1,822      
Buildings and Improvements 3,537      
Total 5,359      
Accumulated Depreciation 12/31/2017 $ 1,720      
2000 Vista Bella Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Encumbrances $ 1,223      
Land 817      
Buildings and Improvements 1,673      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 232      
Land 853      
Buildings and Improvements 1,869      
Total 2,722      
Accumulated Depreciation 12/31/2017 $ 922      
2835 East Ana Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Encumbrances $ 2,544      
Land 1,682      
Buildings and Improvements 2,750      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 409      
Land 1,772      
Buildings and Improvements 3,069      
Total 4,841      
Accumulated Depreciation 12/31/2017 $ 1,496      
16275 Technology Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) San Diego, CA      
Land $ 2,848      
Buildings and Improvements 8,641      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (40)      
Land 2,859      
Buildings and Improvements 8,590      
Total 11,449      
Accumulated Depreciation 12/31/2017 $ 2,999      
665 N. Baldwin Park Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) City of Industry, CA      
Encumbrances $ 3,463      
Land 2,124      
Buildings and Improvements 5,219      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 362      
Land 2,143      
Buildings and Improvements 5,562      
Total 7,705      
Accumulated Depreciation 12/31/2017 $ 1,802      
27801 Avenue Scott [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Santa Clarita, CA      
Encumbrances $ 5,790      
Land 2,890      
Buildings and Improvements 7,020      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 196      
Land 2,902      
Buildings and Improvements 7,204      
Total 10,106      
Accumulated Depreciation 12/31/2017 $ 2,650      
2610 & 2660 Columbia [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Torrance, CA      
Encumbrances $ 4,199      
Land 3,008      
Buildings and Improvements 5,826      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 510      
Land 3,031      
Buildings and Improvements 6,313      
Total 9,344      
Accumulated Depreciation 12/31/2017 $ 2,386      
433 Alaska Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Torrance, CA      
Land $ 681      
Buildings and Improvements 168      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3      
Land 684      
Buildings and Improvements 168      
Total 852      
Accumulated Depreciation 12/31/2017 $ 109      
6305 El Camino Real [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Land $ 1,590      
Buildings and Improvements 6,360      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7,730      
Land 1,590      
Buildings and Improvements 14,090      
Total 15,680      
Accumulated Depreciation 12/31/2017 $ 4,784      
2325 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 1,873      
Land 1,441      
Buildings and Improvements 1,239      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 630      
Land 1,446      
Buildings and Improvements 1,864      
Total 3,310      
Accumulated Depreciation 12/31/2017 $ 665      
2335 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 964      
Land 817      
Buildings and Improvements 762      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 125      
Land 821      
Buildings and Improvements 883      
Total 1,704      
Accumulated Depreciation 12/31/2017 $ 401      
2345 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 635      
Land 562      
Buildings and Improvements 456      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 105      
Land 565      
Buildings and Improvements 558      
Total 1,123      
Accumulated Depreciation 12/31/2017 $ 227      
2355 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 618      
Land 481      
Buildings and Improvements 365      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 246      
Land 483      
Buildings and Improvements 609      
Total 1,092      
Accumulated Depreciation 12/31/2017 $ 323      
2365 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 1,171      
Land 1,098      
Buildings and Improvements 630      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 341      
Land 1,102      
Buildings and Improvements 967      
Total 2,069      
Accumulated Depreciation 12/31/2017 $ 539      
2375 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 1,239      
Land 1,210      
Buildings and Improvements 874      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 105      
Land 1,214      
Buildings and Improvements 975      
Total 2,189      
Accumulated Depreciation 12/31/2017 $ 414      
6451 El Camino Real [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Land $ 2,885      
Buildings and Improvements 1,931      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 670      
Land 2,895      
Buildings and Improvements 2,591      
Total 5,486      
Accumulated Depreciation 12/31/2017 $ 956      
13100 Gregg Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Poway, CA      
Encumbrances $ 3,124      
Land 1,040      
Buildings and Improvements 4,160      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 744      
Land 1,073      
Buildings and Improvements 4,871      
Total 5,944      
Accumulated Depreciation 12/31/2017 $ 2,091      
21730-21748 Marilla St. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Chatsworth, CA      
Encumbrances $ 2,683      
Land 2,585      
Buildings and Improvements 3,210      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 174      
Land 2,608      
Buildings and Improvements 3,361      
Total 5,969      
Accumulated Depreciation 12/31/2017 $ 1,365      
8015 Paramount [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pico Rivera, CA      
Land $ 3,616      
Buildings and Improvements 3,902      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (510)      
Land 3,657      
Buildings and Improvements 3,351      
Total 7,008      
Accumulated Depreciation 12/31/2017 $ 1,321      
3365 E. Slauson [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Vernon, CA      
Land $ 2,367      
Buildings and Improvements 3,243      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (559)      
Land 2,396      
Buildings and Improvements 2,655      
Total 5,051      
Accumulated Depreciation 12/31/2017 $ 1,047      
3015 East Ana [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Land $ 19,678      
Buildings and Improvements 9,321      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,305      
Land 20,144      
Buildings and Improvements 15,160      
Total 35,304      
Accumulated Depreciation 12/31/2017 $ 5,021      
1250 Rancho Conejo Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Land $ 1,435      
Buildings and Improvements 779      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 45      
Land 1,441      
Buildings and Improvements 818      
Total 2,259      
Accumulated Depreciation 12/31/2017 $ 326      
1260 Rancho Conejo Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Land $ 1,353      
Buildings and Improvements 722      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (722)      
Land 675      
Buildings and Improvements 678      
Total 1,353      
Accumulated Depreciation 12/31/2017 $ 235      
1270 Rancho Conejo Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Land $ 1,224      
Buildings and Improvements 716      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (13)      
Land 1,229      
Buildings and Improvements 698      
Total 1,927      
Accumulated Depreciation 12/31/2017 $ 283      
1280 Rancho Conejo Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Encumbrances $ 2,341      
Land 2,043      
Buildings and Improvements 3,408      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (241)      
Land 2,051      
Buildings and Improvements 3,159      
Total 5,210      
Accumulated Depreciation 12/31/2017 $ 807      
1290 Rancho Conejo Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Encumbrances $ 1,969      
Land 1,754      
Buildings and Improvements 2,949      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (322)      
Land 1,761      
Buildings and Improvements 2,620      
Total 4,381      
Accumulated Depreciation 12/31/2017 $ 677      
100 West Sinclair Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Perris, CA      
Land $ 4,894      
Buildings and Improvements 3,481      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (5,233)      
Land 1,819      
Buildings and Improvements 1,323      
Total 3,142      
Accumulated Depreciation 12/31/2017 $ 676      
14050 Day Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Encumbrances $ 3,442      
Land 2,538      
Buildings and Improvements 2,538      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 513      
Land 2,565      
Buildings and Improvements 3,023      
Total 5,588      
Accumulated Depreciation 12/31/2017 $ 1,119      
12925 Marlay Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Fontana, CA      
Encumbrances $ 8,780      
Land 6,072      
Buildings and Improvements 7,891      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 292      
Land 6,090      
Buildings and Improvements 8,165      
Total 14,255      
Accumulated Depreciation 12/31/2017 $ 3,899      
18201-18291 Santa Fe [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Encumbrances $ 9,817      
Land 6,720      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 9,220      
Land 6,897      
Buildings and Improvements 9,043      
Total 15,940      
Accumulated Depreciation 12/31/2017 $ 2,181      
1011 Rancho Conejo [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Encumbrances $ 4,523      
Land 7,717      
Buildings and Improvements 2,518      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (169)      
Land 7,752      
Buildings and Improvements 2,313      
Total 10,065      
Accumulated Depreciation 12/31/2017 $ 988      
20700 Denker Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Torrance, CA      
Encumbrances $ 5,490      
Land 5,767      
Buildings and Improvements 2,538      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,397      
Land 5,964      
Buildings and Improvements 3,739      
Total 9,703      
Accumulated Depreciation 12/31/2017 $ 2,141      
18408 Laurel Park Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Land $ 2,850      
Buildings and Improvements 2,850      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 913      
Land 2,874      
Buildings and Improvements 3,739      
Total 6,613      
Accumulated Depreciation 12/31/2017 $ 1,270      
19021 S. Reyes Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Land $ 8,183      
Buildings and Improvements 7,501      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 233      
Land 8,545      
Buildings and Improvements 7,372      
Total 15,917      
Accumulated Depreciation 12/31/2017 $ 1,572      
24870 Nandina Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Land $ 13,543      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 21,146      
Land 6,482      
Buildings and Improvements 28,207      
Total 34,689      
Accumulated Depreciation 12/31/2017 $ 3,982      
6185 Kimball Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Chino, CA      
Land $ 6,385      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 12,343      
Land 6,382      
Buildings and Improvements 12,346      
Total 18,728      
Accumulated Depreciation 12/31/2017 $ 2,291      
5555 Bandini Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Bell, CA      
Land $ 32,536      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 21,620      
Land 32,540      
Buildings and Improvements 21,616      
Total 54,156      
Accumulated Depreciation 12/31/2017 $ 2,344      
16875 Heacock Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Land $ 0      
Buildings and Improvements 6,831      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 72      
Land 0      
Buildings and Improvements 6,903      
Total 6,903      
Accumulated Depreciation 12/31/2017 $ 1,383      
4710 Guasti Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ontario, CA      
Encumbrances $ 5,774      
Land 2,846      
Buildings and Improvements 6,564      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 212      
Land 2,846      
Buildings and Improvements 6,776      
Total 9,622      
Accumulated Depreciation 12/31/2017 $ 757      
17100 Perris Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Land $ 6,388      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 25,892      
Land 6,395      
Buildings and Improvements 25,885      
Total 32,280      
Accumulated Depreciation 12/31/2017 $ 2,538      
13414 South Figueroa [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Los Angeles, CA      
Encumbrances $ 4,352      
Land 1,701      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,579      
Land 1,887      
Buildings and Improvements 6,393      
Total 8,280      
Accumulated Depreciation 12/31/2017 $ 568      
3841 Ocean Ranch Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Oceanside, CA      
Land $ 4,400      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 8,038      
Land 4,400      
Buildings and Improvements 8,038      
Total 12,438      
Accumulated Depreciation 12/31/2017 $ 681      
3831 Ocean Ranch Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Oceanside, CA      
Land $ 2,693      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,584      
Land 2,694      
Buildings and Improvements 4,583      
Total 7,277      
Accumulated Depreciation 12/31/2017 $ 376      
3821 Ocean Ranch Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Oceanside, CA      
Land $ 2,792      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,469      
Land 2,792      
Buildings and Improvements 4,469      
Total 7,261      
Accumulated Depreciation 12/31/2017 $ 337      
145 West 134th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Los Angeles, CA      
Land $ 2,901      
Buildings and Improvements 2,285      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 173      
Land 2,901      
Buildings and Improvements 2,458      
Total 5,359      
Accumulated Depreciation 12/31/2017 $ 275      
6150 Sycamore Canyon Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Riverside, CA      
Land $ 3,182      
Buildings and Improvements 10,643      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 3,182      
Buildings and Improvements 10,643      
Total 13,825      
Accumulated Depreciation 12/31/2017 $ 907      
17825 Indian Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Land $ 5,034      
Buildings and Improvements 22,095      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 24      
Land 5,034      
Buildings and Improvements 22,119      
Total 27,153      
Accumulated Depreciation 12/31/2017 $ 1,696      
24901 San Michele Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Land $ 1,274      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 11,581      
Land 1,274      
Buildings and Improvements 11,581      
Total 12,855      
Accumulated Depreciation 12/31/2017 $ 504      
1445 Engineer Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Vista, CA      
Land $ 6,816      
Buildings and Improvements 4,417      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (10)      
Land 6,816      
Buildings and Improvements 4,407      
Total 11,223      
Accumulated Depreciation 12/31/2017 $ 360      
19067 Reyes Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Land $ 9,281      
Buildings and Improvements 3,920      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,474      
Land 9,381      
Buildings and Improvements 7,294      
Total 16,675      
Accumulated Depreciation 12/31/2017 $ 241      
10586 Tamarind Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Fontana, California      
Land $ 4,275      
Buildings and Improvements 8,275      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 50      
Land 4,275      
Buildings and Improvements 8,325      
Total 12,600      
Accumulated Depreciation 12/31/2017 $ 142      
2777 Loker Avenue West [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Land $ 7,599      
Buildings and Improvements 13,267      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5      
Land 7,599      
Buildings and Improvements 13,272      
Total 20,871      
Accumulated Depreciation 12/31/2017 $ 343      
7105 Old 215 Frontage Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Riverside, CA      
Land $ 4,900      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 11,995      
Land 4,900      
Buildings and Improvements 11,995      
Total 16,895      
Accumulated Depreciation 12/31/2017 $ 175      
1067-1083 Warson-Bldg A [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) St. Louis, MO      
Land $ 246      
Buildings and Improvements 1,359      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,020      
Land 251      
Buildings and Improvements 2,374      
Total 2,625      
Accumulated Depreciation 12/31/2017 $ 781      
1093-1107 Warson-Bldg B [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) St. Louis, MO      
Land $ 380      
Buildings and Improvements 2,103      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,988      
Land 388      
Buildings and Improvements 4,083      
Total 4,471      
Accumulated Depreciation 12/31/2017 $ 1,402      
1113-1129 Warson-Bldg C [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) St. Louis, MO      
Land $ 303      
Buildings and Improvements 1,680      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 986      
Land 310      
Buildings and Improvements 2,659      
Total 2,969      
Accumulated Depreciation 12/31/2017 $ 936      
1131-1151 Warson-Bldg D [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) St. Louis, MO      
Land $ 353      
Buildings and Improvements 1,952      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,244      
Land 360      
Buildings and Improvements 3,189      
Total 3,549      
Accumulated Depreciation 12/31/2017 $ 1,078      
6821-6857 Hazelwood Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Berkeley, MO      
Encumbrances $ 4,743      
Land 985      
Buildings and Improvements 6,205      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,090      
Land 985      
Buildings and Improvements 7,295      
Total 8,280      
Accumulated Depreciation 12/31/2017 $ 2,800      
13701 Rider Trail North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Earth City, MO      
Land $ 800      
Buildings and Improvements 2,099      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 427      
Land 804      
Buildings and Improvements 2,522      
Total 3,326      
Accumulated Depreciation 12/31/2017 $ 1,058      
1908-2000 Innerbelt [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Overland, MO      
Encumbrances $ 6,771      
Land 1,590      
Buildings and Improvements 9,026      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,254      
Land 1,591      
Buildings and Improvements 10,279      
Total 11,870      
Accumulated Depreciation 12/31/2017 $ 4,783      
21-25 Gateway Commerce Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Edwardsville, IL      
Land $ 1,874      
Buildings and Improvements 31,958      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 45      
Land 1,902      
Buildings and Improvements 31,975      
Total 33,877      
Accumulated Depreciation 12/31/2017 $ 10,020      
5525 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 192      
Buildings and Improvements 1,086      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 305      
Land 200      
Buildings and Improvements 1,383      
Total 1,583      
Accumulated Depreciation 12/31/2017 $ 694      
5709 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 192      
Buildings and Improvements 1,086      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 238      
Land 200      
Buildings and Improvements 1,316      
Total 1,516      
Accumulated Depreciation 12/31/2017 $ 647      
5711 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 243      
Buildings and Improvements 1,376      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 186      
Land 255      
Buildings and Improvements 1,550      
Total 1,805      
Accumulated Depreciation 12/31/2017 $ 755      
5455 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 307      
Buildings and Improvements 1,742      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 761      
Land 326      
Buildings and Improvements 2,484      
Total 2,810      
Accumulated Depreciation 12/31/2017 $ 1,371      
5553 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 307      
Buildings and Improvements 1,742      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 374      
Land 326      
Buildings and Improvements 2,097      
Total 2,423      
Accumulated Depreciation 12/31/2017 $ 1,055      
5501 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 215      
Buildings and Improvements 871      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 410      
Land 242      
Buildings and Improvements 1,254      
Total 1,496      
Accumulated Depreciation 12/31/2017 $ 549      
5503 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 98      
Buildings and Improvements 402      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 194      
Land 110      
Buildings and Improvements 584      
Total 694      
Accumulated Depreciation 12/31/2017 $ 267      
5555 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 213      
Buildings and Improvements 1,206      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 220      
Land 221      
Buildings and Improvements 1,418      
Total 1,639      
Accumulated Depreciation 12/31/2017 $ 691      
5557 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 59      
Buildings and Improvements 335      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 51      
Land 62      
Buildings and Improvements 383      
Total 445      
Accumulated Depreciation 12/31/2017 $ 187      
5463 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 497      
Buildings and Improvements 2,751      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,312      
Land 560      
Buildings and Improvements 4,000      
Total 4,560      
Accumulated Depreciation 12/31/2017 $ 1,717      
5461 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 261      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,312      
Land 265      
Buildings and Improvements 1,308      
Total 1,573      
Accumulated Depreciation 12/31/2017 $ 630      
5481 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 558      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,291      
Land 561      
Buildings and Improvements 2,288      
Total 2,849      
Accumulated Depreciation 12/31/2017 $ 1,008      
4515-4519 George Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 633      
Buildings and Improvements 3,587      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 857      
Land 640      
Buildings and Improvements 4,437      
Total 5,077      
Accumulated Depreciation 12/31/2017 $ 1,798      
6089 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 180      
Buildings and Improvements 987      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 136      
Land 186      
Buildings and Improvements 1,117      
Total 1,303      
Accumulated Depreciation 12/31/2017 $ 458      
6091 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 140      
Buildings and Improvements 730      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 54      
Land 144      
Buildings and Improvements 780      
Total 924      
Accumulated Depreciation 12/31/2017 $ 301      
6103 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 220      
Buildings and Improvements 1,160      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 50      
Land 226      
Buildings and Improvements 1,204      
Total 1,430      
Accumulated Depreciation 12/31/2017 $ 479      
6201 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 200      
Buildings and Improvements 1,107      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 41      
Land 205      
Buildings and Improvements 1,143      
Total 1,348      
Accumulated Depreciation 12/31/2017 $ 548      
6203 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 300      
Buildings and Improvements 1,460      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (270)      
Land 311      
Buildings and Improvements 1,179      
Total 1,490      
Accumulated Depreciation 12/31/2017 $ 454      
6205 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 270      
Buildings and Improvements 1,363      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 47      
Land 278      
Buildings and Improvements 1,402      
Total 1,680      
Accumulated Depreciation 12/31/2017 $ 431      
6101 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 210      
Buildings and Improvements 833      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 95      
Land 216      
Buildings and Improvements 922      
Total 1,138      
Accumulated Depreciation 12/31/2017 $ 429      
4908 Tampa West Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 2,622      
Buildings and Improvements 8,643      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (807)      
Land 2,635      
Buildings and Improvements 7,823      
Total 10,458      
Accumulated Depreciation 12/31/2017 $ 3,628      
1815-1957 South 4650 West [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Salt Lake City, UT      
Encumbrances $ 6,234      
Land 1,707      
Buildings and Improvements 10,873      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 62      
Land 1,713      
Buildings and Improvements 10,929      
Total 12,642      
Accumulated Depreciation 12/31/2017 $ 3,617      
3200 Pond Station [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Jefferson County, KY      
Land $ 2,074      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 9,681      
Land 2,120      
Buildings and Improvements 9,635      
Total 11,755      
Accumulated Depreciation 12/31/2017 $ 2,581      
581 Welltown Road Tyson Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Winchester, VA      
Land $ 2,320      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 11,109      
Land 2,401      
Buildings and Improvements 11,028      
Total 13,429      
Accumulated Depreciation 12/31/2017 $ 2,872      
7501 NW 106th Terrace [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kansas City, MO      
Encumbrances $ 10,986      
Land 4,152      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13,687      
Land 4,228      
Buildings and Improvements 13,611      
Total 17,839      
Accumulated Depreciation 12/31/2017 $ 3,136      
600 Greene Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Greenville, KY      
Land $ 294      
Buildings and Improvements 8,570      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (727)      
Land 296      
Buildings and Improvements 7,841      
Total 8,137      
Accumulated Depreciation 12/31/2017 $ 5,861      
First Nandina Logistics Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Land $ 16,494      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 15,609      
Land 17,066      
Buildings and Improvements 15,037      
Total 32,103      
Accumulated Depreciation 12/31/2017 $ 0      
The Ranch By First Industrial [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eastvale, CA      
Land $ 22,857      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 47,484      
Land 22,860      
Buildings and Improvements 47,481      
Total 70,341      
Accumulated Depreciation 12/31/2017 $ 0      
First Park @ PV 303 Building B [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Goodyear, AZ      
Land $ 6,259      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 12,840      
Land 6,269      
Buildings and Improvements 12,830      
Total 19,099      
Accumulated Depreciation 12/31/2017 $ 0      
First Logistics Center @ I-78/81 Building A [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Union Township, PA      
Land $ 13,702      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,201      
Land 13,724      
Buildings and Improvements 2,179      
Total 15,903      
Accumulated Depreciation 12/31/2017 $ 0      
First Joliet Logistics Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Joliet, IL      
Land $ 2,595      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,726      
Land 2,598      
Buildings and Improvements 3,723      
Total 6,321      
Accumulated Depreciation 12/31/2017 $ 0      
First 290 @ Guhn Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 1,367      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 567      
Land 1,367      
Buildings and Improvements 567      
Total 1,934      
Accumulated Depreciation 12/31/2017 0      
Developments / Land Parcels [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 2,016      
Land 167,269      
Buildings and Improvements 10,558      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 27,681      
Land 162,050      
Buildings and Improvements 43,459      
Total 205,509      
Accumulated Depreciation 12/31/2017 $ 3,836