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Note 17 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	6 Months Ended
	Oct. 02, 2020	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Mar. 18, 2021	Mar. 17, 2021	Sep. 30, 2020	Dec. 31, 2018
Common Stock, Shares Authorized (in shares)			100,000,000		100,000,000	50,000,000	50,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (in shares)			86,462	140,204
Gross Proceeds from Stock Options Exercised			$ 170	$ 258
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total (in shares)			201,560	185,043
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable			$ 3,431
Stock Repurchased During Period, Value		$ 398
Common Stock, Dividends, Per Share, Declared (in dollars per share)			$ 0	$ 0
Share Buyback Program [Member]
Stock Repurchase Program, Authorized Amount								$ 5,000
Stock Repurchased and Retired During Period, Shares (in shares)			0	156,505
Stock Repurchased During Period, Value				$ 398
Assets Acquisition of Amika Mobile Corporation [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares, Each Anniversaries (in shares)	191,267		191,267
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)	573,801		573,801
Business Acquisition, Share Price (in dollars per share)	$ 5.98
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 3,431		$ 3,431

X

- Definition

Represents number of shares of equity interest issued or issuable for business acquisition each anniversaries.

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Number of shares of equity interests issued or issuable to acquire entity.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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