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Note 8 - Other receivables, net (Detail)	12 Months Ended		24 Months Ended		12 Months Ended
Note 8 - Other receivables, net (Detail)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2012 CNY	Dec. 31, 2012 Reversed Due To Subsequent Collection Of Overdue Deposits [Member] USD ($)
Loans and Leases Receivable, Net Amount (in Yuan Renminbi)	$ 3,958,139		$ 3,958,139	25,000,000
Loans and Leases Receivable, Net Amount	3,958,139		3,958,139	25,000,000
Proceeds from Collection of Loans Receivable (in Yuan Renminbi)			1,583,255	10,000,000
Proceeds from Collection of Loans Receivable			1,583,255	10,000,000
Allowance for Doubtful Other Receivables, Current	158,000	524,000	158,000
Provision for Doubtful Accounts	$ 1,141,000	$ 2,583,000			$ 370,000

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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- Definition

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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