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Note 2 - Acquisitions and Dispositions - Pro Forma Effects (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Infitrak Acquisition [Member]
Revenues	$ 19,913	$ 18,592	$ 61,687	$ 55,057
Net income	$ 2,361	$ 2,493	$ 6,721	$ 7,615
Net Income per common share:
Basic (in dollars per share)	$ 0.65	$ 0.71	$ 1.87	$ 2.17
Diluted (in dollars per share)	$ 0.63	$ 0.68	$ 1.80	$ 2.09
Revenues	$ 19,913	$ 18,592	$ 61,687	$ 55,057
Net income	2,361	2,493	6,721	7,615
North Bay Acquisition [Member]
Revenues	19,913	18,910	61,241	56,009
Net income	$ 2,361	$ 2,553	$ 6,713	$ 7,793
Net Income per common share:
Basic (in dollars per share)	$ 0.65	$ 0.72	$ 1.87	$ 2.22
Diluted (in dollars per share)	$ 0.63	$ 0.70	$ 1.80	$ 2.14
Revenues	$ 19,913	$ 18,910	$ 61,241	$ 56,009
Net income	$ 2,361	$ 2,553	$ 6,713	$ 7,793

X

- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ 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 (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

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X

- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ 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 (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

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- References

No definition available.

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X

- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ 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 (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ 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 (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

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- Details

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X

- Details

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