4. Line of Credit (Details) - Santander Bank, N.A. - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Line of Credit Facility, Description	On December 29, 2014, the Company entered into to an Amended and Restated Committed Revolving Line of Credit Note (“the Line”) and a Second Amendment to the Loan Agreement with Santander Bank, N.A. (“Santander”).
Line of Credit Facility, Maximum Borrowing Capacity	$ 15,000
Line of Credit Facility, Interest Rate Description	The Line provides for the payment of any borrowings at an interest rate of either LIBOR plus 1.00% to plus 1.35% (for borrowings with a fixed term of 30, 60, or 90 days), or Prime from 0.00% to plus 0.10%, depending upon the Company’s then existing financial ratios. At September 30, 2015, the Company’s financial ratios would allow for the most favorable rate under the agreement’s range, which would be a rate of 1.33%.
Line of Credit Facility, Commitment Fee Description	the Company is required to pay on a quarterly basis an unused facility fee equal to 10 basis points of the average unused balance of the total Line commitment.
Line of Credit Facility, Fair Value of Amount Outstanding	$ 0	$ 0