Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Allowance for loan losses	$ 2,529,209	$ 2,509,334
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, share authorized (in shares)	5,000,000	5,000,000
Common stock, share issued (in shares)	1,682,997	1,682,997
Common stock, share outstanding (in shares)	1,682,997	1,682,997