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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of contractual obligation, including, but not limited to, long-term debt, lease obligation, purchase obligation, and other commitments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

Reflects the amount of cash required to fully fund agreements to provide advances to borrowers and lessees at interest rates that increase or decrease depending on certain facts or circumstances.

+ References

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- Definition

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

+ References

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- Definition

Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Commitments and Contingencies (Details)	12 Months Ended
Commitments and Contingencies (Details)	Dec. 31, 2023 USD ($) note_receivable	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jan. 04, 2022 USD ($)	Jan. 07, 2021 USD ($)	Dec. 31, 2019 USD ($)
Commitments and Contingencies
Contractual obligation	$ 6,500,000	$ 8,500,000
Number of notes receivable \| note_receivable	6
Loans and leases receivable, commitments, variable rates	$ 46,300,000
Allowance related to unfunded commitments	700,000	$ 338,000	$ 10,000
Harbor Point Parcel 4 \| Payment Guarantee
Commitments and Contingencies
Outstanding guarantee liability	100,000
Guarantor obligations of the senior construction loan (up to)	$ 32,900,000
Rental Revenues \| Geographic Concentration Risk \| Hampton Roads Properties
Commitments and Contingencies
Concentrations of credit risk	37.00%	38.00%	40.00%
Rental Revenues \| Geographic Concentration Risk \| Town Center Properties
Commitments and Contingencies
Concentrations of credit risk	24.00%	25.00%	26.00%
Rental Revenues \| Geographic Concentration Risk \| Harbor Point
Commitments and Contingencies
Concentrations of credit risk	25.00%	26.00%	14.00%
General Contracting and Real Estate Services Revenues \| Customer Concentration Risk \| Group Of Three Construction Customers
Commitments and Contingencies
Concentrations of credit risk	94.00%	89.00%	58.00%
Other liabilities
Commitments and Contingencies
Allowance related to unfunded commitments	$ 732,000	$ 338,000
Harbor Point Parcel 3 Partnership
Commitments and Contingencies
Outstanding letters of credit				$ 15,000,000	$ 15,000,000
Operating Partnership
Commitments and Contingencies
Outstanding letters of credit	$ 0	$ 9,500,000				$ 9,500,000