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Note 13 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2017	Jan. 01, 2017	Dec. 31, 2016
Common Stock, Shares Authorized	20,000,000		20,000,000
Common Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01
Special Stock Shares Authorized	2,000,000
Special Stock Par Value	$ 0.10
Special Stock Shares Outstanding	$ 0
CoreCard Software, Inc. Acquisition [Member]
Business Acquisition, Percentage of Voting Interests Acquired		100.00%

X

- Definition

Face amount or stated value per share of special stock.

+ References

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X

- Definition

Special stock shares authorized.

+ References

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+ Details

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X

- Definition

The amount of special shares of stock outstanding.

+ References

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+ Details

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X

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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X

- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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