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Note 12 - Subsequent Events	6 Months Ended
	Jun. 30, 2015
Subsequent Events [Abstract]
Subsequent Events [Text Block]	12. Subsequent Events On September 17, 2015, the Company announced that it issued 2,343,335 shares of common stock at a price of $4.50 per share, for gross proceeds of $10.55 million pursuant to a shareholders’ rights offering.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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