Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
ASSETS
Allowance of accounts receivable	$ 288	$ 201
LIABILITIES, TEMPORARY EQUITY, AND STOCKHOLDERS' EQUITY (DEFICIT)
Mandatorily redeemable series A preferred stock, shares authorized	360,000	360,000
Mandatorily redeemable series A preferred stock, shares issued	147,030	0
Mandatorily redeemable series A preferred stock, shares outstanding	147,030	0
Mandatorily redeemable series A preferred stock, par value	$ 0.01	$ 0.01
Temporary equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	600,000	600,000
Preferred stock, shares issued	0	339,375
Preferred stock, shares outstanding	0	339,375
Stockholders' equity (deficit):
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	8,453,671	8,453,671
Common stock, shares outstanding	7,214,784	7,214,784
Treasury stock shares repurchased	1,238,887	1,238,887