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Debt (Schedule of Long-term Debt - Notes Payable) (Details) - USD ($) $ in Thousands | 1 Months Ended | 9 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 31, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Jul. 20, 2015 | May. 22, 2015 | Dec. 31, 2014 | Apr. 16, 2014 | Dec. 13, 2013 | Apr. 15, 2013
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  | $ 11,458 |  |  |  | $ 12,151 |  |  |
Repayments of Notes Payable |  | 3,898 | $ 19,984 |  |  |  |  |  |
Notes Payable | Briar Ridge Investments, LTD |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  | 9,000 |  |  |  | 9,000 |  |  |
Notes Payable | Lakeside DFW Land, LTD |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  | 0 |  |  |  | 1,824 |  |  |
Notes Payable | Lyons Equities, Inc.[Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  | 988 |  |  |  | 0 |  |  |
Notes Payable | Centennial Park Richardson, LTD. [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  | 304 |  |  |  | 0 |  |  |
Notes Payable | Subordinated Lot Notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  | 1,166 |  |  |  | $ 1,327 |  |  |
Subsidiary of JBGL | Notes Payable | Briar Ridge Investments, LTD |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  | 6.00% |
Interest Payable |  | $ 0 |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  | $ 9,000 |
Subsidiary of JBGL | Notes Payable | Lakeside DFW Land, LTD |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 5.00% |  | 6.00%
Debt instrument, face amount |  |  |  |  |  |  | $ 3,300 |  | $ 3,500
Repayments of Notes Payable | $ 1,500 |  |  |  |  |  |  |  |
Subsidiary of JBGL | Notes Payable | Lyons Equities, Inc.[Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  | 3.50% |  |  |  |
Debt instrument, face amount |  |  |  |  | $ 1,000 |  |  |  |
Subsidiary of JBGL | Notes Payable | Centennial Park Richardson, LTD. [Member] |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  | 0.00% |  |  |  |  |
Debt instrument, face amount |  |  |  | $ 300 |  |  |  |  |
Subsidiaries of the Company | Minimum | Notes Payable | Subordinated Lot Notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate |  | 8.00% |  |  |  |  |  |  |
Subsidiaries of the Company | Maximum | Notes Payable | Subordinated Lot Notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stated interest rate |  | 14.00% |  |  |  |  |  |  |

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