Debt Instrument, Collateral Amount, Deposit

No definition available.

Name:	digirad_DebtInstrumentCollateralAmountDeposit
Namespace Prefix:	digirad_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line of Credit Facility, Automatic Extension, Period

+ References

No definition available.

+ Details

Name:	digirad_LineofCreditFacilityAutomaticExtensionPeriod
Namespace Prefix:	digirad_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Monthly Collateral Monitoring Fee Percentage

+ References

No definition available.

+ Details

Name:	digirad_MonthlyCollateralMonitoringFeePercentage
Namespace Prefix:	digirad_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of assets pledged to secure a debt instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentCollateralAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebtCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=digirad_KBSLoanAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=digirad_KBSLoanAgreementMaturingFebruary222020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=digirad_KBSLoanAgreementMaturingFebruary222019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt - KBS Loan Agreement (Details) - USD ($)	12 Months Ended
Debt - KBS Loan Agreement (Details) - USD ($)	Dec. 31, 2019	Sep. 10, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Short-term debt	$ 4,036,000		$ 0
Revolving Credit Facility \| KBS Loan Agreement
Debt Instrument [Line Items]
Short-term debt	1,111,000		$ 0
Revolving Credit Facility \| Line of Credit \| KBS Loan Agreement, Maturing February 22, 2020
Debt Instrument [Line Items]
Maximum credit amount	$ 4,000,000.0
Line of credit facility, automatic extension, period	1 year
Revolving Credit Facility \| Line of Credit \| KBS Loan Agreement, Maturing February 22, 2019
Debt Instrument [Line Items]
Line of credit facility, automatic extension, period	1 year
Revolving Credit Facility \| Line of Credit \| KBS Loan Agreement
Debt Instrument [Line Items]
Maximum credit amount	$ 4,000,000.0
Line of credit facility, commitment fee percentage	1.50%
Monthly collateral monitoring fee percentage	0.10%
Debt instrument, collateral amount		$ 300,000
Debt instrument, collateral amount, deposit		$ 200,000
Revolving Credit Facility \| Line of Credit \| KBS Loan Agreement \| Prime Rate
Debt Instrument [Line Items]
Stated rate	2.75%