Consolidated Statements of Changes in Shareholders Equity - USD ($)	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings [Member]
Beginning Balance, Amount at Dec. 31, 2016	$ 77,000	$ 943,000	$ (1,536,000)	$ 17,656,000
Beginning Balance, Shares at Dec. 31, 2016	7,677,471		741,202
Net loss				(3,000)
Ending Balance, Amount at Dec. 31, 2017	$ 77,000	943,000	$ (1,536,000)	17,653,000
Enidng Balance, shares at Dec. 31, 2017	7,677,471		741,202
Purchase shares of Common Stock as Treasury Stock, Amount			$ (270,000)
Purchase shares of Common Stock as Treasury Stock, Shares			126,667
Net loss				264,000
Ending Balance, Amount at Dec. 31, 2018	$ 77,000	943,000	$ (1,806,000)	17,917,000
Enidng Balance, shares at Dec. 31, 2018	7,677,471		867,869
Net loss				(646,000)
Ending Balance, Amount at Dec. 31, 2019	$ 77,000	$ 943,000	$ (1,806,000)	$ 17,271,000
Enidng Balance, shares at Dec. 31, 2019	7,677,471		867,869