XML 79 R55.htm IDEA: XBRL DOCUMENT
v3.22.1

Deferred charges, net (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) Vessel | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Deferred charges, net [Abstract] |  |  |
Balance at beginning of period | $ 2,061,573 | $ 0 | $ 341,070
Additions | 3,936,331 | 2,216,102 |
Amortization | (1,135,080) | (154,529) | (341,070)
Balance at end of period | $ 4,862,824 | $ 2,061,573 | $ 0
Number of additional vessels completing scheduled dry-dock | Vessel | 3 |  |

X
- Definition Amount of additions to asset recognized from cost incurred to obtain or fulfill contract with customer. + References No definition available. + Details
Name: | ctrm_CapitalizedContractCostAdditions
Namespace Prefix: | ctrm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of additional vessels completing their scheduled dry-dock. + References No definition available. + Details
Name: | ctrm_NumberOfAdditionalVesselsCompletingScheduledDryDock
Namespace Prefix: | ctrm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123353750&loc=SL49131252-203054 + Details
Name: | us-gaap_CapitalizedContractCostAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123353750&loc=SL49131252-203054 + Details
Name: | us-gaap_CapitalizedContractCostNetNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration