v3.20.1

PAYMENT PROCESSING LIABILITIES, NET (Details) - Other Current Liabilities - USD ($)		Dec. 31, 2019	Dec. 31, 2018
PAYMENT PROCESSING LIABILITIES, NET (Details) - Other Current Liabilities [Line Items]
Settlement liabilities		$ 14,014,177	$ 893,767
Refund allowances	[1]	0	(28,681)
Total payment processing liabilities		14,021,892	865,086
Settlement liabilities to merchants [Member]
PAYMENT PROCESSING LIABILITIES, NET (Details) - Other Current Liabilities [Line Items]
Settlement liabilities		14,014,177	786,425
Settlement liabilities to ISOs [Member]
PAYMENT PROCESSING LIABILITIES, NET (Details) - Other Current Liabilities [Line Items]
Settlement liabilities		$ 0	$ 107,342
[1] The Refund Allowance shown in the table above reflects our estimate of potential refunds that may be realized in 2019, which are connected to sales transactions that occurred in 2018. The allowance decreases the amount that GreenBox owes to Merchants using our proprietary ecosystem. In 2019, the actual dollar amount of refunds with be reconciled with our allowance.

X

- References

No definition available.

+ Details

Name:	grbx_PAYMENTPROCESSINGLIABILITIESNETDetailsOtherCurrentLiabilitiesLineItems
Namespace Prefix:	grbx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Settlement liabilities.

+ References

No definition available.

+ Details

Name:	grbx_SettlementLiabilities
Namespace Prefix:	grbx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Settlement liabilities refund allowances.

+ References

No definition available.

+ Details

Name:	grbx_SettlementLiabilitiesRefundAllowances
Namespace Prefix:	grbx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

+ 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 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6911-107765

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e7018-107765

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6935-107765

+ Details

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

X

- Details

Name:	us-gaap_FairValueByLiabilityClassAxis=grbx_SettlementLiabilitiesToMerchantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByLiabilityClassAxis=grbx_SettlementLiabilitiesToISOsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: