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Note 2 - Summary of Significant Accounting Policies (Details Textual) ¥ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jul. 20, 2015 USD ($)	Dec. 31, 2014 CNY (¥)
Government Grants, Current	$ 288,000	$ 309,000
Number of Reportable Segments	1
Assets	$ 14,908,000	$ 10,970,000
Depreciation of RMB Against U.S. Dollar, Percent	6.30%	4.40%	2.49%
Cash Equivalents, at Carrying Value	$ 0	$ 0
Allowance for Doubtful Accounts Receivable	0	0
Capital Lease Obligations	0	0	$ 0
Government Grants, Credit to Profit (Loss)	0	0	0
Revenue, Net	0	$ 0	0
UNITED STATES
Assets	4,594,000
CHINA
Assets	$ 368,000
Wanchun Pharma [Member]
Government Grants, Current			$ 323,000		¥ 2
Assets				$ 1,347,000

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The percentage of value depreciation of the Chinese Renminbi vs the U.S. Dollar during the period.

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For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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