Consolidated Statement of Changes in Shareholders' Equity (unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Total
Beginning balance at Dec. 31, 2015	$ 6	$ (1,731)	$ 48,688	$ 605	$ (62)	$ 47,506
Beginning balance (shares) at Dec. 31, 2015	6,134,274	223,851
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock compensation expense			38			38
Purchase of treasury stock		$ (1,195)				(1,195)
Purchase of treasury stock (in shares)	(177,508)	177,508
Retirement of treasury shares		$ 1,917	(1,917)
Retirement of treasury shares (shares)		(250,000)
Net income				11		11
Other comprehensive loss					(3)	(3)
Ending balance at Dec. 31, 2016	$ 6	$ (1,009)	46,809	616	(65)	46,357
Ending balance (shares) at Dec. 31, 2016	5,956,766	151,359
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock compensation expense			7			7
Net income				246		246
Other comprehensive loss					55	55
Ending balance at Mar. 31, 2017	$ 6	$ (1,009)	$ 46,816	$ 862	$ (10)	$ 46,665
Ending balance (shares) at Mar. 31, 2017	5,956,766	151,359