BORROWINGS (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended			1 Months Ended		3 Months Ended		9 Months Ended						9 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	May 31, 2014 Equipment under capital leases	Mar. 31, 2013 Equipment under capital leases	Sep. 30, 2014 Equipment under capital leases	Sep. 30, 2013 Equipment under capital leases	Sep. 30, 2014 Equipment under capital leases	Sep. 30, 2013 Equipment under capital leases	Dec. 31, 2013 Equipment under capital leases	Sep. 30, 2014 Cash-collateralized line of credit agreement	Dec. 31, 2013 Cash-collateralized line of credit agreement	Dec. 26, 2012 Cash-collateralized line of credit agreement	Sep. 30, 2014 Cash-collateralized line of credit agreement LIBOR	Dec. 31, 2013 Cash-collateralized line of credit agreement LIBOR	Sep. 30, 2014 Revolving credit facility	Dec. 31, 2013 Revolving credit facility	Sep. 30, 2014 Commercial purchasing card	Dec. 31, 2013 Commercial purchasing card
Debt Instrument [Line Items]
Maximum borrowing capacity																$ 3,000,000	$ 3,000,000
Debt, variable rate basis, term																		1 month
Debt Instrument, Description of Variable Rate Basis																		one-month LIBOR
Interest rate margin on variable rate basis (percent)																		1.00%	1.00%
Amounts outstanding															0	0				0	0
Letters of credit, outstanding amount	1,600,000		1,600,000		1,600,000		1,600,000
Outstanding balance																						471,000	517,000
Unused borrowing capacity																						4,529,000	4,483,000
Computer equipment acquired under capital lease obligations			325,000	2,563,000	325,000	2,563,000		325,000	2,600,000
Payment of capital lease obligation			325,000	2,563,000	325,000	2,563,000			2,600,000
Future payment obligations under capital leases	0		0		0
Fixed assets under capital leases										4,600,000		4,600,000		4,200,000
Accumulated depreciation										2,600,000		2,600,000		2,100,000
Depreciation and amortization	$ 4,701,000	$ 3,307,000	$ 12,806,000	$ 10,833,000	$ 16,495,000	$ 14,907,000				$ 188,000	$ 161,000	$ 518,000	$ 268,000