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Notes Payable - Additional Information (Detail) (Revolving Credit Facility One, USD $) In Millions, unless otherwise specified | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 Prior to July 27, 2012 | Dec. 31, 2013 London Interbank Offered Rate (LIBOR) | May 01, 2012 London Interbank Offered Rate (LIBOR) | Dec. 31, 2013 London Interbank Offered Rate (LIBOR) Prior to July 27, 2012
Line Of Credit Facility [Line Items] |  |  |  |  |  |
Borrowed under the agreement | $ 0.5 | $ 0.5 |  |  |  |
Additional borrowings available based on the Company's borrowing | 7.9 | 6.9 |  |  |  |
Revolving credit line | 10.0 |  |  |  |  |
Revolving credit agreement maturity date | Oct. 01, 2015 |  |  |  |  |
Leverage test of total liabilities to total net worth | 1.00 |  |  |  |  |
Fixed Charge Coverage Ratio | 1.25 |  |  |  |  |
Credit facility's interest rate, Description | credit facility’s interest rate is LIBOR plus 3.25% per annum |  | interest rate on the Company’s borrowings was 30 day LIBOR rate plus 2.75% per year |  |  |
Credit facility's interest rate |  |  |  | 3.25% |  | 2.75%
Commitment fee of the unused portion of the credit |  |  |  | 0.30% |  |
Preferred stock, at redemption value |  |  |  |  | $ 5 |

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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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