Interim Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Interim Consolidated Balance Sheets [Abstract]
Allowance for doubtful accounts receivable	$ 3,421	$ 2,882
Property and equipment, net (variable interest entity restricted)	7,374	7,298
Current portion of long-term debt and capitalized lease obligations	176	173
Long-term debt and capitalized lease obligations, less current portion	$ 5,646	$ 5,067
Redeemable preferred stock, par value	$ 0.10	$ 0.10
Redeemable preferred stock, shares authorized	5,000	5,000
Redeemable preferred stock, shares issued	5,000	5,000
Redeemable preferred stock, shares outstanding	5,000
Preferred stock, par value	$ 0.10	$ 0.10
Preferred stock, shares authorized	200,000	200,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	6,099,000	6,061,000
Common stock, shares outstanding	5,867,000	5,829,000
Treasury stock, shares	232,000	232,000