Note 6 - Office Properties and Equipment (Details Textual) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Depreciation			$ 2,566,000	$ 2,842,000
Assets Held-for-sale, Not Part of Disposal Group	$ 4,669,000		4,669,000		$ 5,337,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal			(8,000)	1,100,000
Impairment of Long-Lived Assets to be Disposed of	$ 279,000	$ 640,000	$ 634,000	$ 987,000