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Note 5 - Accounts receivable, net (Detail) (USD $)	6 Months Ended		3 Months Ended	6 Months Ended
Note 5 - Accounts receivable, net (Detail) (USD $)	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2012 Internet Ad [Member]	Jun. 30, 2012 Internet Ad [Member]
Allowance for Doubtful Accounts Receivable, Current	$ 2,467,000	$ 2,102,000
Number of Months Past Due	6 months
Provision for Doubtful Accounts	$ 561,000		$ 350,000	$ 350,000

Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

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