Note 16 - Stockholders' Equity - Summary of Changes in Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended		12 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2022	Jun. 30, 2021	Sep. 30, 2021
Balance	$ 64,472	$ 64,731	$ 65,958	$ 53,144	$ 52,657	$ 49,140	$ 65,958	$ 49,140	$ 49,140
Share-based compensation expense	355	737	558	446	328	182
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)							130,000	86,462
Issuance of common stock upon exercise of stock options, net	83	124	46		116	54
Stock buyback		(557)	(441)
Release of obligation to issue commons stock			0	0
Other comprehensive income (loss)	(452)	(1)	(85)	183	(78)	469
Net income (loss)	(589)	(492)	(1,305)	290	262	(619)	$ (2,386)	$ (67)
Issuance of common stock upon vesting of restricted stock units (in shares)							251,918	206,560
Issuance of common stock upon vesting of restricted stock units	0	0		0	0
Shares retained for payment of taxes in connection with net share settlement of restricted stock units		(70)			(141)
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total (in shares)							251,918	206,560
Obligation to issue common stock						3,431
Issuance of common stock upon vesting of restricted stock units	0	0		0	0
Shares retained for payment of taxes in connection with net share settlement of restricted stock units		(70)			(141)
Issuance of common stock in business combination				10,938
Balance	$ 63,869	$ 64,472	$ 64,731	$ 65,001	$ 53,144	$ 52,657	$ 63,869	$ 65,001	$ 65,958
Common Stock [Member]
Balance (in shares)	36,528,085	36,371,529	36,403,833	33,849,566	33,587,443	33,561,544	36,403,833	33,561,544	33,561,544
Balance	$ 365	$ 363	$ 364	$ 339	$ 336	$ 336	$ 364	$ 336	$ 336
Share-based compensation expense	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)	60,000	55,000	15,000		60,563	25,899
Issuance of common stock upon exercise of stock options, net	$ 1	$ 1	$ 0		$ 1	$ 0
Stock buyback (in shares)			(116,868)
Stock buyback		(1)	$ (1)
Release of obligation to issue commons stock (in shares)			69,564	121,703
Release of obligation to issue commons stock			$ 0	$ 1
Other comprehensive income (loss)		0	0	0	0	0
Net income (loss)		$ 0	$ 0	$ 0	$ 0	0
Issuance of common stock upon vesting of restricted stock units (in shares)	7,920	262,342		5,000	223,633
Issuance of common stock upon vesting of restricted stock units	$ 0	$ 2		$ 0	$ 2
Shares retained for payment of taxes in connection with net share settlement of restricted stock units (in shares)		(18,344)			(22,073)
Shares retained for payment of taxes in connection with net share settlement of restricted stock units		$ 0			$ 0
Stock buyback (in shares)		(142,442)
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total (in shares)	7,920	262,342		5,000	223,633
Obligation to issue common stock						$ 0
Issuance of common stock upon vesting of restricted stock units	$ 0	$ 2		$ 0	$ 2
Shares retained for payment of taxes in connection with net share settlement of restricted stock units (in shares)		(18,344)			(22,073)
Shares retained for payment of taxes in connection with net share settlement of restricted stock units		$ 0			$ 0
Stock Issued During Period, Shares, Acquisitions (in shares)				2,165,824
Issuance of common stock in business combination				$ 22
Balance (in shares)	36,596,005	36,528,085	36,371,529	36,142,093	33,849,566	33,587,443	36,596,005	36,142,093	36,403,833
Balance	$ 366	$ 365	$ 363	$ 362	$ 339	$ 336	$ 366	$ 362	$ 364
Additional Paid-in Capital [Member]
Balance	107,507	107,273	107,110	95,218	94,915	91,248	107,110	91,248	91,248
Share-based compensation expense	355	737	558	446	328	182
Issuance of common stock upon exercise of stock options, net	83	124	46		116	54
Stock buyback		(557)	(441)
Release of obligation to issue commons stock			0	0
Other comprehensive income (loss)	0	0	0	0	0	0
Net income (loss)	0	0	0	0	0	0
Issuance of common stock upon vesting of restricted stock units	0	0		0	0
Shares retained for payment of taxes in connection with net share settlement of restricted stock units		(70)			(141)
Obligation to issue common stock						3,431
Issuance of common stock upon vesting of restricted stock units	0	0		0	0
Shares retained for payment of taxes in connection with net share settlement of restricted stock units		(70)			(141)
Issuance of common stock in business combination				10,938
Balance	107,945	107,507	107,273	106,602	95,218	94,915	107,945	106,602	107,110
Retained Earnings [Member]
Balance	(42,951)	(42,459)	(41,154)	(42,215)	(42,477)	(41,858)	(41,154)	(41,858)	(41,858)
Share-based compensation expense	0	0	0	0	0	0
Issuance of common stock upon exercise of stock options, net	0	0	0		0	0
Stock buyback		0	0
Release of obligation to issue commons stock			0	0
Other comprehensive income (loss)	0	0	0	0	0	0
Net income (loss)	(589)	(492)	(1,305)	290	262	(619)
Issuance of common stock upon vesting of restricted stock units	0	0		0	0
Shares retained for payment of taxes in connection with net share settlement of restricted stock units		0			0
Obligation to issue common stock						0
Issuance of common stock upon vesting of restricted stock units	0	0		0	0
Shares retained for payment of taxes in connection with net share settlement of restricted stock units		0			0
Issuance of common stock in business combination				0
Balance	(43,540)	(42,951)	(42,459)	(41,925)	(42,215)	(42,477)	(43,540)	(41,925)	(41,154)
AOCI Attributable to Parent [Member]
Balance	(84)	(83)	2	141	219	(250)	2	(250)	(250)
Share-based compensation expense	0	0	0	0	0	0
Issuance of common stock upon exercise of stock options, net	0	0	0		0	0
Stock buyback		0	0
Release of obligation to issue commons stock			0	0
Other comprehensive income (loss)	(452)	(1)	(85)	183	(78)	469
Net income (loss)	0	0	0	0	0	0
Issuance of common stock upon vesting of restricted stock units	0	0		0	0
Shares retained for payment of taxes in connection with net share settlement of restricted stock units		0			0
Obligation to issue common stock						0
Issuance of common stock upon vesting of restricted stock units	0	0		0	0
Shares retained for payment of taxes in connection with net share settlement of restricted stock units		0			0
Issuance of common stock in business combination				0
Balance	$ (536)	$ (84)	$ (83)	$ 324	$ 141	$ 219	$ (536)	$ 324	$ 2