Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]
Receivables, allowance for doubtful accounts and sales returns	$ 254	$ 219
Property and equipment, accumulated depreciation and amortization	13,861	12,221
Intangible assets accumulated amortization	$ 537	$ 705
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	250,000	250,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	29,750,000	29,750,000
Common stock, shares issued	10,060,349	10,203,734
Common stock, shares outstanding	10,060,349	10,203,734