Credit Facility (Details Textual) (USD $)	3 Months Ended		12 Months Ended			3 Months Ended			3 Months Ended	13 Months Ended	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2011 Revolving Credit Facility [Member]	Mar. 31, 2013 Revolving Credit Facility [Member]	Dec. 31, 2012 Revolving Credit Facility [Member]	Mar. 31, 2014 Secured Debt [Member]	Mar. 31, 2014 London Interbank Offered Rate (LIBOR) [Member] Revolving Credit Facility [Member]	Mar. 31, 2014 Revolving Credit Facility [Member] Secured Debt [Member]	Mar. 31, 2014 Equipment Term Loan [Member] Secured Debt [Member]	Apr. 30, 2012 Equipment Term Loan [Member] Secured Debt [Member]	Mar. 31, 2014 Equipment Term Loan [Member] London Interbank Offered Rate (LIBOR) [Member] Secured Debt [Member]	Mar. 31, 2014 Collateral for Borrowing [Member]
Debt Instrument [Line Items]
Revolving line of credit					$ 15,000,000
Line of Credit Facility, Required Pledge of Equity Interests in Subsidiary, Percent	65.00%
Amounts outstanding under the Revolving Line of Credit				0
Borrowings under credit facility, interest payable description	at either (i) the bank’s prime rate or (ii) LIBOR plus 2.25%					applicable interest rate was LIBOR plus 2.25% (2.5% as of March 31, 2014)
Borrowings under credit facility, interest related to Libor rate							2.25%				2.25%
Equipment term loan number of payments									36 months
Equipment term loan, interest rate							2.50%				2.50%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.25%
Proceeds from Issuance of Debt										5,000,000
Restricted cash	1,000,000	0										1,000,000
Long-term Debt								$ 3,000,000	$ 1,817,000