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Condensed Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Accumulated Depreciation and Amortization	$ 11,627	$ 11,321
Leased Property Accumulated Depreciation and Amortization	$ 2,632	$ 2,539
Class A Par Value [Member]
Par Value (in Dollars per share)	$ 0.01	$ 0.01
Class B Par Value [Member]
Par Value (in Dollars per share)	$ 0.01	$ 0.01

- Definition

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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