Note 17 - Subsequent Events	6 Months Ended
Jun. 30, 2015
Subsequent Events [Abstract]
Subsequent Events [Text Block]	17. Subsequent Events On July 31, 2015, the Company completed its merger with Asia Bancshares, Inc. (“Bancshares”). As a result of the transaction, Bancshares has been merged with and into Bancorp, and its subsidiary, Asia Bank, has been merged with and into Cathay Bank. Asia Bank operates three branches in New York and one branch in Maryland. Under the terms of the merger, Bancorp is issuing 2.58 million shares of its common stock and paying $57.0 million in cash for all the issued and outstanding shares of Bancshares common stock. As of June 30, 2015, Bancshares had total assets of $520.5 million, total gross loans of $413.7 million, total deposits of $437.1 million and total equity of $79.3 million.

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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