Note 1 - Basis of Presentation and Accounting Policies (Details) - Changes in Accumulated Other Comprehensive Income (AOCI) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 31	$ 3,168,482	$ 103,000
Other compreshensive income (loss) before reclassifications	286,000	3,073,000
Amounts reclassified from AOCI	(1,006,000)	(8,000)
Net current period other comprehensive income (loss)	(720,584)	3,065,601
Balance at December 31	2,447,898	3,168,482
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 31	3,422,000	125,000
Other compreshensive income (loss) before reclassifications	279,000	3,305,000
Amounts reclassified from AOCI	(1,006,000)	(8,000)
Net current period other comprehensive income (loss)	(727,000)	3,297,000
Balance at December 31	2,695,000	3,422,000
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 31	(254,000)	(22,000)
Other compreshensive income (loss) before reclassifications	7,000	(232,000)
Amounts reclassified from AOCI	0	0
Net current period other comprehensive income (loss)	7,000	(232,000)
Balance at December 31	$ (247,000)	$ (254,000)