Note 3 - Acquisitions (Details Textual) $ in Thousands, $ in Millions							2 Months Ended	3 Months Ended													12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 21, 2021 USD ($)	Dec. 21, 2021 CAD ($)	Oct. 28, 2021 USD ($)	Oct. 21, 2021	Oct. 06, 2021 USD ($) shares	Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)		Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	[2]	Jun. 30, 2021 USD ($)	[3]	Mar. 31, 2021 USD ($)	[4]	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 21, 2021 CAD ($)
Revenue from Contract with Customer, Including Assessed Tax								$ 32,405	$ 30,771	$ 29,571	$ 24,081	$ 22,358	[1]		$ 21,144		$ 21,820		$ 19,556		$ 116,828	$ 84,878
Net Income (Loss) Attributable to Parent, Total								3,244	$ 2,524	2,116	$ 577	287	[1]		$ 2,175		$ 2,609		$ 2,212		8,461	7,283
Z-Sciences [Member]
Business Combination, Consideration Transferred, Total						$ 479
Payments to Acquire Businesses, Gross						300
Business Combination, Acquisition Related Costs						82
Business Combination, Contingent Consideration, Liability, Total	$ 179					$ 179	$ 179					179		$ 179								179
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)						14 years
Revenue from Contract with Customer, Including Assessed Tax														15
Z-Sciences [Member] | Restricted Stock Award [Member] | Achieving Future Performance Milestones [Member]
Business Acquisition, Equity Interest Issued or Issuable, Vesting Percentage						100.00%
Z-Sciences [Member] | Maximum [Member] | Restricted Stock Award [Member] | Achieving Future Performance Milestones [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable						$ 1,800
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares						200,000
Videology [Member]
Business Combination, Consideration Transferred, Total				$ 12,094
Payments to Acquire Businesses, Gross				12,000
Business Combination, Acquisition Related Costs				$ 288
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)				11 years 7 months 6 days
Revenue from Contract with Customer, Including Assessed Tax							1,434
Net Income (Loss) Attributable to Parent, Total							(146)
Business Acquisition, Transaction Costs	288						288					288		288								288
Acculogic [Member]
Business Combination, Consideration Transferred, Total		$ 9,426
Payments to Acquire Businesses, Gross		8,500
Business Combination, Acquisition Related Costs																						1,297
Business Combination, Contingent Consideration, Liability, Total	930	1,430					930	1,363				930		930							1,363	930
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)					14 years
Revenue from Contract with Customer, Including Assessed Tax	48
Net Income (Loss) Attributable to Parent, Total	(131)
Business Acquisition, Transaction Costs	$ 1,297						$ 1,297					$ 1,297		$ 1,297								$ 1,297
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred										$ (371)
Acculogic [Member] | Payments Based on Performance Metrics [Member]
Business Combination, Contingent Consideration, Liability, Total		$ 1,430						$ 3,700													$ 3,700		$ 5.0
Minimum Amount Required for Invoices Received			$ 2.5

[1] The quarter ended December 31, 2021 includes a recovery of $17 of restructuring and other charges which are discussed in Note 5.

[2] The quarter ended September 30, 2021 includes $51 of restructuring and other charges which are discussed in Note 5.

[3] The quarter ended June 30, 2021 includes $197 of restructuring and other charges which are discussed in Note 5.

[4] The quarter ended March 31, 2021 includes $55 of restructuring and other charges which are discussed in Note 5.