Debt (Details Textual) (USD $)	9 Months Ended		9 Months Ended	0 Months Ended	9 Months Ended
	Sep. 30, 2014	Jan. 17, 2014	Sep. 30, 2014 SunTrust Bank [Member]	Jan. 19, 2010 Sun Trust Term Loan [Member]	Sep. 30, 2014 Sun Trust Term Loan [Member]	Sep. 30, 2014 Sun Trust Term Loan [Member] Minimum [Member] LIBOR [Member]	Sep. 30, 2014 Sun Trust Term Loan [Member] Maximum [Member] LIBOR [Member]	Sep. 30, 2014 Sun Trust Revolving Credit Facility [Member]	Aug. 07, 2014 Sun Trust Revolving Credit Facility [Member]	Jun. 30, 2014 Sun Trust Revolving Credit Facility [Member]	Jan. 17, 2014 Sun Trust Revolving Credit Facility [Member]	Jan. 19, 2010 Sun Trust Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Four-year revolving credit and term loan agreement			Jan. 19, 2010
Period of term loan and the revolving credit facility				4 years
Committed revolving credit facility				$ 15,000,000.0					$ 20,000,000		$ 25,000,000.0	$ 15,000,000.0
Committed term loan				15,000,000.0
Frequency of payment			Monthly		Quarterly
Term loan required quarterly principal payments					800,000
First payment on the term loan					Mar. 31, 2010
Term loan final principal payment					3,000,000
Revolving credit facility and term loan interest rate (percent)		1.75%						1.90%
Revolving credit facility outstanding								0
Applicable margin (percent)						2.25%	3.50%	1.75%
Revolving credit facility commitment fee (percent)								0.50%
SunTrust term loan, line of credit facility, frequency of payment			Quarterly
Index rate used as reference for interest rate on revolver and term loan			One-month LIBOR rate
Credit facility, covenant compliance	The SunTrust credit facility, as amended, requires as of the end of each fiscal quarter, the Company to have achieved Consolidated Adjusted EBITDA (as defined in the agreement) of at least $18.0 million for the immediately preceding four quarters. As of June 30, 2014, the Company's Consolidated Adjusted EBITDA for the preceding four quarters was $17.0 million, and therefore the Company was not in compliance with the covenant, although there were no amounts outstanding under the credit facility as of that date. On August 7, 2014, the Company entered into an amendment of the SunTrust credit facility that provided a waiver of the non-compliance with the minimum Consolidated Adjusted EBITDA covenant for the quarter ended June 30, 2014, reduced the minimum Consolidated Adjusted EBITDA requirement to $12.0 million, modified the Fixed Charge Coverage Ratio definition for the quarter ending September 30, 2014 by excluding certain payments, and reduced the maximum borrowing amount under the senior credit facility to $20.0 million. The Company was in compliance with the covenants in its SunTrust credit facility as of September 30, 2014.
Credit facility, covenant for minimum adjusted EBITDA									12,000,000	18,000,000
Credit facility, covenant, adjusted EBITDA, actual										$ 17,000,000