Note 18 - Acquisition of Business (Details Textual) - USD ($)						1 Months Ended	12 Months Ended
	Dec. 01, 2017	Aug. 21, 2017	Mar. 08, 2016	Jan. 01, 2015	Jan. 01, 2014	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Amortization of Intangible Assets							$ 2,400,000	$ 2,300,000	$ 2,100,000
Goodwill						$ 16,032,000	16,032,000	11,269,000
BAMKO [Member]
Payments to Acquire Businesses, Gross			$ 15,200,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares			324,000
Business Acquisition, Equity Interested Issued, Vesting Period			5 years
Business Combination, Liabilities Arising From Contingencies, Earn Out Liability, Before Discount			$ 5,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			11,360,000
Business Combination, Contingent Consideration, Liability						5,200,000	5,200,000
Amortization of Intangible Assets							$ 400,000	300,000
Business Combination, Acquisition Related Costs					$ 1,100,000			1,100
Business Acquisition, Pro Forma Revenue								6,600,000	31,500,000
Business Acquisition, Pro Forma Net Income (Loss)								$ 1,100,000	$ (400,000)
Business Acquisition, Pro Forma Earnings Per Share, Basic								$ 0.08	$ 0.03
Business Combination, Consideration Transferred			24,924,000
Goodwill			6,994,000
BAMKO [Member] | Customer Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			2,100,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							7 years
BAMKO [Member] | Noncompete Agreements [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			400,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							5 years 302 days
BAMKO [Member] | Trade Names [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			$ 8,900,000
Public Identity [Member]
Payments to Acquire Businesses, Gross		$ 800,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		54,000
Business Acquisition, Equity Interested Issued, Vesting Period		3 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		$ 1,700,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		400,000
Business Combination, Consideration Transferred		2,300,000
Goodwill		$ 600,000
Tangerine [Member]
Payments to Acquire Businesses, Gross	$ 7,200,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	83,000
Business Acquisition, Equity Interested Issued, Vesting Period	4 years
Business Combination, Liabilities Arising From Contingencies, Earn Out Liability, Before Discount	$ 5,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	6,495,000
Business Combination, Contingent Consideration, Liability						3,200,000	$ 3,200,000
Amortization of Intangible Assets						$ 100,000
Business Combination, Acquisition Related Costs				$ 200,000			200,000
Business Acquisition, Pro Forma Revenue							35,100,000	$ 43,100,000	$ 48,000,000
Business Acquisition, Pro Forma Net Income (Loss)							$ 1,900,000	$ (2,400,000)	$ 100,000
Business Acquisition, Pro Forma Earnings Per Share, Basic							$ 0.13	$ 0.17
Business Combination, Consideration Transferred	12,088,000
Goodwill	4,169,000
Tangerine [Member] | Customer Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	3,100,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life						7 years
Tangerine [Member] | Noncompete Agreements [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	200,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life						7 years
Tangerine [Member] | Trade Names [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 3,200,000