Note 9 - Acquisition of Businesses (Details Textual) - USD ($) $ / shares in Units, $ in Thousands						1 Months Ended	3 Months Ended		9 Months Ended
	May 02, 2018	Mar. 08, 2018	Dec. 01, 2017	Aug. 21, 2017	Mar. 08, 2016	Dec. 31, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Amortization of Intangible Assets, Total							$ 1,000	$ 600	$ 2,900	$ 1,700
Business Combination, Contingent Consideration, Liability, Current						$ 3,061	791		791
Goodwill, Ending Balance						$ 16,032	33,835		33,835
CID Resources [Member]
Payments to Acquire Businesses, Gross	$ 84,430
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	150,094
Working Capital Target Amount	$ 39,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total	41,020
Amortization of Intangible Assets, Total							500		800
Business Acquisition, Pro Forma Revenue								17,600	22,300	48,400
Business Acquisition, Pro Forma Net Income (Loss)								$ 1,500	$ 2,600	$ 1,300
Business Acquisition, Pro Forma Earnings Per Share, Basic								$ 0.10	$ 0.17	$ 0.09
Business Combination, Consideration Transferred, Total	90,714
Goodwill, Ending Balance	17,968
CID Resources [Member] | Trade Names [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total	14,200
CID Resources [Member] | Customer Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total	$ 26,000
Finite-Lived Intangible Asset, Useful Life	15 years
CID Resources [Member] | Noncompete Agreements [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total	$ 800
Finite-Lived Intangible Asset, Useful Life	5 years 302 days
BAMKO [Member]
Payments to Acquire Businesses, Gross					$ 15,200
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares					324,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total					$ 11,360
Amortization of Intangible Assets, Total							100	$ 100	$ 300	$ 300
Business Acquisition, Pro Forma Revenue										28,300
Business Acquisition, Pro Forma Net Income (Loss)								$ 200		$ 600
Business Acquisition, Pro Forma Earnings Per Share, Basic								$ 0.10		$ 0.40
Business Acquisition, Equity Interested Issued, Vesting Period					5 years
Business Combination, Liabilities Arising From Contingencies, Earn Out Liability, Before Discount					$ 5,500
Business Combination, Contingent Consideration, Liability, Total							3,700		3,700
Business Combination, Contingent Consideration, Liability, Current							800		800
Business Combination, Consideration Transferred, Total					24,924
Goodwill, Ending Balance					6,994
BAMKO [Member] | Trade Names [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total					8,900
BAMKO [Member] | Customer Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total					2,100
Finite-Lived Intangible Asset, Useful Life		7 years
BAMKO [Member] | Noncompete Agreements [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total					$ 400
Finite-Lived Intangible Asset, Useful Life		5 years 302 days
Public Identity [Member]
Payments to Acquire Businesses, Gross				$ 800
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares				54,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total				$ 1,700
Business Acquisition, Equity Interested Issued, Vesting Period				3 years
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High				$ 400
Business Combination, Consideration Transferred, Total				2,300
Goodwill, Ending Balance				$ 600
Tangerine [Member]
Payments to Acquire Businesses, Gross			$ 7,200
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares			83,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total			$ 6,495
Amortization of Intangible Assets, Total							100		400
Business Acquisition, Pro Forma Revenue								$ 9,300
Business Acquisition, Equity Interested Issued, Vesting Period			4 years
Business Combination, Liabilities Arising From Contingencies, Earn Out Liability, Before Discount			$ 5,500
Business Combination, Contingent Consideration, Liability, Total							$ 2,400		$ 2,400
Business Combination, Consideration Transferred, Total			12,088
Goodwill, Ending Balance			4,169
Tangerine [Member] | Trade Names [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total			3,200
Tangerine [Member] | Customer Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total			3,100
Finite-Lived Intangible Asset, Useful Life						7 years
Tangerine [Member] | Noncompete Agreements [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total			$ 200
Finite-Lived Intangible Asset, Useful Life						7 years