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Related Party Transactions (Narrative) (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2014 USD ($) $ / shares shares | Sep. 30, 2014 $ / shares shares | Mar. 31, 2013 USD ($) | Dec. 31, 2015 USD ($) entity shares | Dec. 31, 2014 USD ($) shares | Dec. 31, 2013 USD ($) shares | Dec. 31, 2012 USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Securities sold under agreements to repurchase | $ 101,856 |  |  | $ 127,913 | $ 101,856 |  |
Fair value of securities pledged as collateral under repurchase agreements | 108,065 |  |  | $ 137,232 | $ 108,065 |  |
Issuance of shares | shares |  |  |  | 212,121 | 186,342 | 2,935,506 |
Investment Banking Revenue |  |  |  | $ 5,370 | $ 5,219 | $ 6,418 |
Cash and cash equivalents | $ 12,253 |  |  | 14,115 | 12,253 | 13,161 | $ 14,500
Payments to Acquire Other Investments |  |  |  | 11 | 25,290 | 2,035 |
Retirement of common stock | shares | 100,000 | 100,000 |  |  |  |  |
Treasury Stock Acquired, Average Cost Per Share | $ / shares | $ 1.77 | $ 2.07 |  |  |  |  |
Sublease income, recorded as rent expense reduction |  |  |  | $ 731 | 784 | 304 |
401(k) Savings Plan [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Company matching percent |  |  |  | 50.00% |  |  |
Percent of employees gross salary qualifying for matching contributions |  |  |  | 3.00% |  |  |
Company plan contributions |  |  |  | $ 214 | 261 | 461 |
EBC Family Trust [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Value of shares issued |  |  |  |  |  | 1,600 |
Related Party Transaction, Amounts of Transaction |  |  |  |  |  | $ 4,000 |
Star Asia Manager [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Ownership percentage of equity method affiliate |  |  |  |  |  |  | 50.00%
Percentage of membership interests |  |  |  |  |  | 100.00% |
Star Asia Special Situations Fund [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Number of other parties involved in creation of new fund | entity |  |  |  | 2 |  |  |
Payments to Acquire Other Investments |  |  | $ 302 |  |  |  |
Investment fund, initial life |  |  |  | 3 years |  |  |
Investment fund, potential extension term |  |  |  | 2 years |  |  |
TBBK [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Securities sold under agreements to repurchase | $ 46,275 |  |  | $ 0 | 46,275 |  |
Fair value of securities pledged as collateral under repurchase agreements | 48,482 |  |  | 0 | 48,482 |  |
Investment Banking Revenue |  |  |  |  |  | $ 174 |
Cash and cash equivalents | $ 86 |  |  | 43 | 86 |  |
TBBK [Member] | Net Trading [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Interest Expense, Related Party |  |  |  | $ 541 | 461 |  |
Mead Park Capital [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Notes Payable, Related Parties |  |  |  |  |  | 5,848 |
Value of shares issued |  |  |  |  |  | $ 3,898 |
Issuance of shares | shares |  |  |  |  |  | 1,949,167 |
Shares sold | shares |  |  |  | 1,461,876 |  |  |
Convertible notes owned after transaction |  |  |  | $ 1,462 |  |  |
Interest Expense, Related Party |  |  |  | $ 340 | 547 | $ 144 |
Related Party Transaction, Amounts of Transaction |  |  |  |  |  | $ 9,746 |
Shares transferred to entity | shares |  |  |  | 487,291 |  |  |
Edward E. Cohen IRA [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Interest Expense, Related Party |  |  |  | $ 210 |  |  |
Star Asia And Related Entities [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal |  |  |  |  | $ 78 |  |
Daniel G. Cohen [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Cash from sale of car |  |  |  | 9 |  |  |
Gain on sale of car |  |  |  | $ 9 |  |  |
Ricciardi Parties [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Shares transferred to entity | shares |  |  |  | 1,512,709 |  |  |
Ricciardi Parties And Mead Park Capital [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Related Party Transaction, Amounts of Transaction |  |  |  | $ 4,000 |  |  |
Board of Directors Chairman [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Sublease income, recorded as rent expense reduction |  |  |  | 14 |  |  |
Utility expense, Sublease income offset |  |  |  | $ 8 |  |  |
Subordinated Debt [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Stated interest rate |  |  |  | 12.00% |  |  |
Contingent Convertible Senior Notes [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  | 8.00% |
Contingent Convertible Senior Notes [Member] | EBC Family Trust [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Notes Payable, Related Parties |  |  |  |  |  | $ 2,400 |
Stated interest rate |  |  |  |  |  | 8.00% |
Contingent Convertible Senior Notes [Member] | Mead Park Capital [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Stated interest rate |  |  |  | 8.00% |  |  |
Convertible notes sold |  |  |  | $ 4,386 |  |  |
Contingent Convertible Senior Notes [Member] | Edward E. Cohen IRA [Member] |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Stated interest rate |  |  |  | 8.00% |  |  |
Convertible notes purchased |  |  |  | $ 4,386 |  |  |

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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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