CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)	Total	Common Stock	Treasury Stock	Paid-in Capital	Retained Earnings	Common Stock	Common Stock Common Stock	Common Stock Paid-in Capital
BALANCE at the beginning (in shares) at Dec. 31, 2017		(19,631,266)	0
BALANCE, at the beginning at Dec. 31, 2017	$ 14,860,000	$ 196,000	$ 0	$ 14,288,000	$ 376,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividend declared	(1,391,000)			(695,000)
Dividends					(696,000)
Stock compensation	98,000			98,000
Net income	$ 320,000				320,000
BALANCE at the end (in shares) at Mar. 31, 2018	0	(19,631,266)
BALANCE, at the end at Mar. 31, 2018	$ 13,887,000	$ 196,000	$ 0	13,691,000	0
BALANCE at the beginning (in shares) at Dec. 31, 2017		(19,631,266)	0
BALANCE, at the beginning at Dec. 31, 2017	14,860,000	$ 196,000	$ 0	14,288,000	376,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,209,000
BALANCE at the end (in shares) at Sep. 30, 2018		(21,530,470)	(59,174)
BALANCE, at the end at Sep. 30, 2018	$ 29,442,000	$ 215,000	$ (1,000)	29,228,000	0
BALANCE at the beginning (in shares) at Mar. 31, 2018	0	(19,631,266)
BALANCE, at the beginning at Mar. 31, 2018	$ 13,887,000	$ 196,000	$ 0	13,691,000	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividend declared	(1,395,000)
Dividends					(1,395,000)
Stock option exercise (in shares)		125,000
Stock option exercise	750,000	$ 1,000		749,000
Stock compensation	90,000			90,000
Net income	2,256,000				2,256,000
BALANCE at the end (in shares) at Jun. 30, 2018		(19,756,266)	(20,673)
BALANCE, at the end at Jun. 30, 2018	15,588,000	$ 197,000	$ 0	14,530,000	861,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net proceeds from sale of stock						$ 14,636,000	$ 17,000	$ 14,619,000
Dividend declared	(1,522,000)			(28,000)
Dividends					(1,494,000)
Sale of Stock, Number of Shares Issued in Transaction						1,720,000
Stock option exercise (in shares)		54,204
Stock option exercise	40,000	$ 1,000		39,000
Stock compensation	68,000			68,000
Net income	633,000				633,000
BALANCE at the end (in shares) at Sep. 30, 2018		(21,530,470)	(59,174)
BALANCE, at the end at Sep. 30, 2018	$ 29,442,000	$ 215,000	$ (1,000)	29,228,000	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock, Shares	(21,530,470)
BALANCE at the beginning (in shares) at Dec. 31, 2018	(59,174)	(21,530,470)
BALANCE, at the beginning at Dec. 31, 2018	$ 27,871,000	$ 215,000	(1,000)	27,657,000	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividend declared	(1,537,000)			(888,000)
Dividends					(649,000)
Stock option exercise	0
Stock compensation	65,000			65,000
Net income	$ 649,000				649,000
BALANCE at the end (in shares) at Mar. 31, 2019	(59,174)	(21,530,470)
BALANCE, at the end at Mar. 31, 2019	$ 27,048,000	$ 215,000	(1,000)	26,834,000	0
BALANCE at the beginning (in shares) at Dec. 31, 2018	(59,174)	(21,530,470)
BALANCE, at the beginning at Dec. 31, 2018	$ 27,871,000	$ 215,000	$ (1,000)	27,657,000	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividend declared				(764,000)
Dividends					(778,000)
Stock option exercise (in shares)		104,000
Stock option exercise		$ 1,000		412,000
Stock compensation				66,000
Net income					778,000
BALANCE at the end (in shares) at Jun. 30, 2019		(21,634,470)	(97,636)
BALANCE, at the end at Jun. 30, 2019	$ 26,763,000	$ 216,000	$ (1,000)	26,548,000	0
BALANCE at the beginning (in shares) at Dec. 31, 2018	(59,174)	(21,530,470)
BALANCE, at the beginning at Dec. 31, 2018	$ 27,871,000	$ 215,000	$ (1,000)	27,657,000	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,474,000
BALANCE at the end (in shares) at Sep. 30, 2019		(21,634,470)	(97,636)
BALANCE, at the end at Sep. 30, 2019	$ 26,362,000	$ 216,000	$ (1,000)	26,147,000	0
BALANCE at the beginning (in shares) at Mar. 31, 2019	(59,174)	(21,530,470)
BALANCE, at the beginning at Mar. 31, 2019	$ 27,048,000	$ 215,000	$ (1,000)	26,834,000	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividend declared	(1,542,000)
Stock option exercise	413,000
Stock compensation	66,000
Net income	778,000
BALANCE at the end (in shares) at Jun. 30, 2019		(21,634,470)	(97,636)
BALANCE, at the end at Jun. 30, 2019	26,763,000	$ 216,000	$ (1,000)	26,548,000	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock, Shares			(38,462)
Dividend declared	(1,541,000)			(494,000)
Dividends					(1,047,000)
Stock option exercise	0			0
Stock compensation	93,000			93,000
Net income	1,047,000				1,047,000
BALANCE at the end (in shares) at Sep. 30, 2019		(21,634,470)	(97,636)
BALANCE, at the end at Sep. 30, 2019	$ 26,362,000	$ 216,000	$ (1,000)	$ 26,147,000	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock, Shares	(21,634,470)