Note 20 - Parent Company Only Financial Statements - Condensed Statements of Cash Flows (Details) (Parentheticals) - shares	3 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Proceeds from issuance of common stock, net of issuance costs, shares (in shares)	1,215,000
Common Stock Offering 1 [Member] | Parent Company [Member]
Proceeds from issuance of common stock, net of issuance costs, shares (in shares)			3,680,000
Common Stock Offering 2 [Member] | Parent Company [Member]
Proceeds from issuance of common stock, net of issuance costs, shares (in shares)		1,215,000