Balance Sheets (Parentheticals) - $ / shares $ / shares in Thousands	Dec. 31, 2018	Dec. 31, 2017
Common Stock, par value (in dollars per share)	$ 0	$ 0
Common Stock, shares authorized (in shares)	3,000,000	3,000,000
Common Stock, shares issued (in shares)	1,942,495	1,942,495
Common Stock, shares outstanding (in shares)	1,942,495	1,942,495