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Income Taxes - Additional Information (Detail) (USD $) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 17, 2012 | Dec. 31, 2013
Tax Credit Carryforward [Line Items] |  |
Payments to civil penalty | $ 3,700,000 |
Federal capital loss carry forwards |  | 79,000
Operating loss carryforwards expiration year |  | 2027
Operating loss carry forwards net |  | 2,200,000
Capital loss carryforward term |  | 5 years
Credit carryforward, expiration date |  | Dec. 31, 2017
Maryland State [Member] |  |
Tax Credit Carryforward [Line Items] |  |
Credit carry forwards, net |  | 237,000
Pennsylvania [Member] |  |
Tax Credit Carryforward [Line Items] |  |
Credit carry forwards, net |  | $ 29,000
Maximum [Member] |  |
Tax Credit Carryforward [Line Items] |  |
Capital loss carryforwards expiration year |  | 2017
Minimum [Member] |  |
Tax Credit Carryforward [Line Items] |  |
Capital loss carryforwards expiration year |  | 2016

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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