Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Property and equipment, accumulated depreciation and amortization	$ 13,838	$ 13,556
Leased property under capital leases, accumulated depreciation and amortization	$ 3,522	$ 3,397
Common Class A [Member]
Par Value	$ 0.01	$ 0.01
Common Class B [Member]
Par Value	$ 0.01	$ 0.01