Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Accounts receivable, allowances (in Dollars)	$ 327	$ 354
Preferred stock, par value (in Dollars per share)	$ 0.00015	$ 0.00015
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in Dollars per share)	$ 0.00015	$ 0.00015
Common stock, shares authorized	70,000	70,000
Common stock, shares issued	35,457	35,285
Common stock, shares outstanding	30,439	30,437
Treasury stock shares	5,018	4,848