Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Allowance for Credit Loss	$ 101	$ 406
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	55,000,000	55,000,000
Common stock, shares issued (in shares)	13,489,482	13,169,204
Common stock, shares outstanding (in shares)	13,489,482	13,169,204

Amount of allowance for credit loss on accounts receivable, classified as current.

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