Debt and Shareholders' Equity (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended
	May 31, 2016	Jun. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Debt And Shareholders Equity Details Narrative
Outstanding borrowings under revolving loan agreement		$ 40,822	$ 40,822	$ 25,913
Credit facility borrowing capacity	$ 50,000
Interest rate of LIBOR plus percentage	2.00%
Credit facility interest rate	Interest rate of LIBOR plus 2.0%
Facility fee per annum	0.20%
Credit facility expiration date	May 06, 2019
Common stock issued upon exercise of employee stock options (in shares)		2,500	35,900
Cash received upon exercise of employee stock options		$ 37	$ 390
Shares repurchased during period		3,621	61,491
Average repurchase price		$ 16.74	$ 14.76
Shares that may be purchased under repurchase program		41,229	41,229