Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]
Allowances for doubtful accounts	$ 279	$ 300
Preferred Stock, par value	$ 0.001	$ 0.001
Preferred Stock, shares authorized	1,000,000	1,000,000
Preferred Stock, shares issued	102,054	161,359
Preferred Stock, shares outstanding	102,054	161,359
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	48,216,480	46,783,568
Treasury stock, shares	29,990	29,990