Real Estate Assets (Details)
$ in Thousands |
3 Months Ended |
6 Months Ended |
12 Months Ended |
15 Months Ended |
33 Months Ended |
|
May 31, 2016
USD ($)
|
Feb. 29, 2016
USD ($)
|
May 31, 2015
USD ($)
|
Nov. 30, 2013
USD ($)
a
|
May 31, 2016
USD ($)
|
May 31, 2015
USD ($)
|
Nov. 30, 2015
USD ($)
|
Feb. 29, 2016 |
May 31, 2016
USD ($)
|
| Real Estate Assets |
|
|
|
|
|
|
|
|
|
| Land |
$ 17,989
|
|
|
|
$ 17,989
|
|
$ 18,157
|
|
$ 17,989
|
| Land improvements |
22,605
|
|
|
|
22,605
|
|
22,440
|
|
22,605
|
| Buildings and improvements |
154,760
|
|
|
|
154,760
|
|
149,111
|
|
154,760
|
| Tenant improvements |
21,428
|
|
|
|
21,428
|
|
19,611
|
|
21,428
|
| Machinery and equipment |
11,022
|
|
|
|
11,022
|
|
11,810
|
|
11,022
|
| Construction in progress |
13,498
|
|
|
|
13,498
|
|
10,240
|
|
13,498
|
| Development costs |
15,870
|
|
|
|
15,870
|
|
15,870
|
|
15,870
|
| Real estate assets, gross |
257,172
|
|
|
|
257,172
|
|
247,239
|
|
257,172
|
| Accumulated depreciation |
(83,699)
|
|
|
|
(83,699)
|
|
(80,784)
|
|
(83,699)
|
| Real estate assets, net |
173,473
|
|
|
|
173,473
|
|
$ 166,455
|
|
173,473
|
| Depreciation expense |
1,898
|
|
$ 1,596
|
|
3,782
|
$ 3,146
|
|
|
|
| Capitalized interest |
133
|
|
204
|
|
217
|
367
|
|
|
|
| Sales |
|
|
|
|
|
|
|
|
|
| Percentage of cost incurred on sale of land |
|
|
|
|
|
|
92.00%
|
|
|
| Revenue from property sales |
(278)
|
|
245
|
|
(278)
|
1,071
|
|
|
|
| Deferred revenue |
9,835
|
|
|
|
9,835
|
|
$ 10,790
|
|
9,835
|
| Real estate held for sale |
1,587
|
|
|
|
$ 1,587
|
|
1,418
|
|
$ 1,587
|
| Windsor undeveloped land sale |
|
|
|
|
|
|
|
|
|
| Sales |
|
|
|
|
|
|
|
|
|
| Number of acres sold | a |
|
|
|
90
|
|
|
|
|
|
| Proceeds from sale of undeveloped land |
|
|
|
$ 8,968
|
|
|
|
|
|
| Number of acres | a |
|
|
|
253
|
|
|
|
|
|
| Increase in estimated project cost |
$ 79
|
|
|
|
|
|
|
|
|
| Percentage of cost incurred on sale of land |
89.00%
|
|
|
|
89.00%
|
|
|
|
89.00%
|
| Revenue from property sales |
$ (278)
|
|
245
|
|
|
1,071
|
|
|
$ 7,978
|
| Estimated total pre-tax gain |
6,686
|
$ 6,765
|
|
|
|
|
|
|
|
| Pretax gain on land sale |
|
|
$ 127
|
|
|
$ 749
|
|
|
5,950
|
| Deferred revenue |
990
|
|
|
|
$ 990
|
|
|
|
990
|
| Land. |
|
|
|
|
|
|
|
|
|
| Sales |
|
|
|
|
|
|
|
|
|
| Real estate held for sale |
246
|
|
|
|
$ 246
|
|
$ 78
|
|
246
|
| Land improvements | Minimum |
|
|
|
|
|
|
|
|
|
| Real Estate Assets |
|
|
|
|
|
|
|
|
|
| Estimated Useful Lives |
|
|
|
|
|
|
|
10 years
|
|
| Land improvements | Maximum |
|
|
|
|
|
|
|
|
|
| Real Estate Assets |
|
|
|
|
|
|
|
|
|
| Estimated Useful Lives |
|
|
|
|
30 years
|
|
30 years
|
|
|
| Buildings and improvements | Minimum |
|
|
|
|
|
|
|
|
|
| Real Estate Assets |
|
|
|
|
|
|
|
|
|
| Estimated Useful Lives |
|
|
|
|
10 years
|
|
10 years
|
|
|
| Buildings and improvements | Maximum |
|
|
|
|
|
|
|
|
|
| Real Estate Assets |
|
|
|
|
|
|
|
|
|
| Estimated Useful Lives |
|
|
|
|
40 years
|
|
40 years
|
|
|
| Machinery and equipment. | Minimum |
|
|
|
|
|
|
|
|
|
| Real Estate Assets |
|
|
|
|
|
|
|
|
|
| Estimated Useful Lives |
|
|
|
|
3 years
|
|
3 years
|
|
|
| Machinery and equipment. | Maximum |
|
|
|
|
|
|
|
|
|
| Real Estate Assets |
|
|
|
|
|
|
|
|
|
| Estimated Useful Lives |
|
|
|
|
20 years
|
|
20 years
|
|
|
| Development costs |
|
|
|
|
|
|
|
|
|
| Sales |
|
|
|
|
|
|
|
|
|
| Real estate held for sale |
$ 1,341
|
|
|
|
$ 1,341
|
|
$ 1,340
|
|
$ 1,341
|