CONSOLIDATED STATEMENT OF EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Total Stockholders’ Equity	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Balance at December 31, 2013 at Dec. 31, 2013	$ 155,890	$ 155,890	$ 270	$ 169,756	$ (204)	$ (13,932)
Balance at December 31, 2013 (shares) at Dec. 31, 2013			27,049,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to the employee stock purchase plan (shares)			18,000
Issuance of common stock pursuant to the employee stock purchase plan		181	0	181	0	0
Issuance of restricted common stock, net of cancellations (shares)			129,000
Issuance of restricted common stock, net of cancellations		1	1	0		0
Foreign currency translation adjustment	44	44	0	0	44	0
Surrender of restricted common stock for income tax purposes (shares)			(327,000)
Surrender of restricted common stock for income tax purposes		(4,028)	(3)	(4,025)	0	0
Issuance of common stock in connection with the exercise of vested stock options (shares)	2,000		2,000
Issuance of common stock in connection with the exercise of vested stock options		8	0	8	0	0
Stock repurchased and retired during period (shares)			(62,000)
Repurchase of common stock		(615)	0	(386)	0	(229)
Stock-based compensation		1,188		1,188	0	0
Excess tax benefits from stock-based awards		930	0	930	0	0
Net loss	(676)	(676)	0		0	(676)
Balance at March 31, 2014 at Mar. 31, 2014	$ 152,923	$ 152,923	$ 268	$ 167,652	$ (160)	$ (14,837)
Balance at March 31, 2014 (shares) at Mar. 31, 2014			26,809,000