v2.4.0.8

Stock Options, Warrants, and Stock Incentives (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock option expiration period from date of grant	10 years
Expiration period of warrants issued	5 years
Number of Shares
Outstanding at beginning of year (in shares)	589,478	836,228	930,228
Forfeited/cancelled (in shares)	(63,350)	(246,750)	(94,000)
Outstanding and exercisable at end of year (in shares)	526,128	589,478	836,228
Weighted-Average Exercise Price
Outstanding at beginning of year (in dollars per share)	$ 6.12	$ 7.98	$ 7.92
Forfeited/cancelled (in dollars per share)	$ 12.42	$ 12.45	$ 3.17
Outstanding and exercisable at end of year (in dollars per share)	$ 5.36	$ 6.12	$ 7.98
Weighted-Average Remaining Contractual Term
Weighted Average Remaining Contractual Life	1 year 6 months	2 years 2 months 12 days	2 years 8 months 12 days
Aggregate Intrinsic Value
Outstanding at end of year (in dollars)	$ 0	$ 0	$ 0
Exercisable at end of year (in dollars)	$ 0	$ 0	$ 0
Options and warrants exercised	0	0	0

Represents the expiration period of class of warrants or rights issued.

+ References

No definition available.

+ Details

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Namespace Prefix:	fmar_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portion of options and warrants outstanding and currently exercisable.

+ References

No definition available.

+ Details

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Namespace Prefix:	fmar_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the gross number of share options (or share units) and warrants exercised during the period.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

The number of shares under options and warrants that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	fmar_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of shares outstanding and exercisable as of the reporting date.

+ References

No definition available.

+ Details

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Namespace Prefix:	fmar_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the weighted average exercise price of options and warrants outstanding and exercisable.

+ References

No definition available.

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Share based compensation arrangement by share based payment award options and warrants outstanding and exercisable weighted average remaining contractual term.

+ References

No definition available.

+ Details

Name:	fmar_ShareBasedCompensationArrangementBySharebasedPaymentAwardOptionsAndWarrantsOutstandingAndExercisableWeightedAverageRemainingContractualTerm
Namespace Prefix:	fmar_
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Balance Type:	na
Period Type:	duration

- Definition

Represents the amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options and warrants outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	fmar_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the expiration period of options after the date of stock option granted.

+ References

No definition available.

+ Details

Name:	fmar_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationTerm
Namespace Prefix:	fmar_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options and warrants that were terminated.

+ References

No definition available.

+ Details

Name:	fmar_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsAndWarrantsForfeituresInPeriodWeightedAverageExercisePrice
Namespace Prefix:	fmar_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Details

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- Details

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FIRST MARINER BANCORP 10-K