CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parentheticals) - $ / shares	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	15,000,000	15,000,000
Common stock, shares issued	7,697,146	7,652,170
Common stock, shares outstanding	7,669,440	7,652,170
Treasury stock, shares	27,706	0