Note 19 - Regulatory Restrictions (Tables)

12 Months Ended

Dec. 31, 2016

Banking And Thrift [Abstract]

Capital Ratios and Regulatory Minimum Requirements

	Capital levels
	Actual					Adequately capitalized					Well capitalized
As of December 31, 2016	Amount		Ratio			Amount		Ratio			Amount		Ratio
Total risk-based capital (to risk-weighted assets):
Consolidated	$	104,820		12.75	%	$	65,777		8.00	%	$	82,221		10.00	%
Bank		96,478	12.10				63,792	8.00				79,740	10.00
Tier I capital (to risk-weighted assets):
Consolidated		97,320	11.84				49,333	6.00				49,333	6.00
Bank		89,025	11.16				47,844	6.00				63,792	8.00
Common equity tier 1 capital (to risk-weighted assets):
Consolidated		97,320	11.84				36,999	4.50			N/A		N/A
Bank		89,025	11.16				35,883	4.50				51,831	6.50
Tier I capital (to average assets):
Consolidated		97,320	9.16				42,479	4.00			N/A		N/A
Bank		89,025	8.45				42,144	4.00				52,680	5.00

	Capital levels
	Actual					Adequately capitalized					Well capitalized
As of December 31, 2015	Amount		Ratio			Amount		Ratio			Amount		Ratio
Total risk-based capital (to risk-weighted assets):
Consolidated	$	98,432		12.58	%	$	62,613		8.00	%	$	78,266		10.00	%
Bank		91,091	11.97				60,874	8.00				76,093	10.00
Tier I capital (to risk-weighted assets):
Consolidated		90,819	11.60				46,960	6.00				46,960	6.00
Bank		83,478	10.97				45,656	6.00				60,874	8.00
Common equity tier 1 capital (to risk-weighted assets):
Consolidated		90,819	11.60				35,220	4.50			N/A		N/A
Bank		83,478	10.97				34,242	4.50				49,460	6.50
Tier I capital (to average assets):
Consolidated		90,819	8.87				40,934	4.00			N/A		N/A
Bank		83,478	8.22				40,632	4.00				50,790	5.00