Consolidated Condensed Balance Sheets (Current Period Unaudited) (Parentheticals) (Q1) - $ / shares	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Preferred stock, par value (in dollars per share)	$ 0.005	$ 0.005	$ 0.005
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0	0
Preferred stock, shares outstanding (in shares)	0	0	0
Common stock, par value (in dollars per share)	$ 0.005	$ 0.005	$ 0.005
Common stock, shares authorized (in shares)	25,000,000	25,000,000	25,000,000
Common stock, shares issued (in shares)	15,468,945	13,376,062	11,298,239
Common stock, shares outstanding (in shares)	15,468,945	13,376,062	11,298,239

Face amount or stated value per share of common stock.

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