Current Liabilities and Debt Obligations (Details) (USD $)	3 Months Ended		9 Months Ended				9 Months Ended	12 Months Ended	3 Months Ended		9 Months Ended			9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2010	Sep. 30, 2014 Term Loan [Member]	Dec. 31, 2013 Term Loan [Member]	Sep. 30, 2014 Revolving credit [Member]	Sep. 30, 2013 Revolving credit [Member]	Sep. 30, 2014 Revolving credit [Member]	Sep. 30, 2013 Revolving credit [Member]	Dec. 31, 2013 Revolving credit [Member]	Sep. 30, 2014 Revolving credit [Member] Prime Rate [Member]	Sep. 30, 2014 Revolving credit [Member] Federal Funds Rate [Member]	Sep. 30, 2014 Revolving credit [Member] LIBOR Rate [Member]	Sep. 30, 2014 Short-term [Member] Term Loan [Member]		Dec. 31, 2013 Short-term [Member] Term Loan [Member]	Sep. 30, 2014 Long-term [Member]	Sep. 30, 2014 Long-term [Member] Term Loan [Member]		Sep. 30, 2014 Long-term [Member] Revolving credit [Member]
Accounts Payable and Other Accrued Payables [Abstract]
Trade account payables	$ 17,000,000		$ 17,000,000		$ 17,300,000
Accrued trade payables	3,500,000		3,500,000		6,000,000
Senior Revolving Credit Facility [Abstract]
Maximum revolving credit facility						30
Term loan component of Facility							5,800,000	6,200,000
Amended expiration date of revolving credit facility			Nov. 13, 2015
Principal amount of term loan repaid in quarterly installments							250,000	93,750
Fees paid in connection with amendment	75,000		75,000
Percentage added to reference rate to compute the variable rate (in hundredths)											3.75%			1.00%	1.50%	2.00%
Interest rate on credit facility (in hundredths)	4.25%		4.25%
Interest expense	1,373,000	1,381,000	3,965,000	4,154,000					200,000	200,000	500,000	600,000
Outstanding borrowing of credit facility							5,800,000	6,200,000	13,000,000		13,000,000		19,800,000				1,000,000		700,000
Remaining borrowing capacity									4,800,000		4,800,000		9,200,000
Recurring revenue under debt covenant	4,500,000		4,500,000		5,000,000
Weighted average interest rates on outstanding borrowings (in hundredths)	5.70%	5.30%	5.70%	5.30%
Maturities of facility presented by year [Abstract]
2014	1,000,000		1,000,000														1,000,000			0	0		0
2015	11,985,000		11,985,000														0			11,985,000	4,750,000		7,235,000
Total	$ 12,985,000		$ 12,985,000														$ 1,000,000	[1]		$ 11,985,000	$ 4,750,000	[1]	$ 7,235,000	[2]

[1] The principal will be repaid in quarterly installments of $250,000, with a final installment of the unpaid principal amount payable on November 13, 2015.

[2] Balance due represents balance as of June 30, 2014, with fluctuating balances based on working capital requirements of the Company.