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Note R - Earnings Per Share (EPS) - Securities Excluded From the Diluted Per Share Calculation (Details) - shares	6 Months Ended		12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Exercise Price Less Than Average Market Price Of Common Shares [Member]
Antidilutive securities (in shares)			5,282,060	5,435,342
Exercise Price Less Than Average Market Price Of Common Shares [Member] | Preferred Stock [Member]
Antidilutive securities (in shares)			5,264,422	5,416,667
Exercise Price Less Than Average Market Price Of Common Shares [Member] | Employee Stock Option [Member]
Antidilutive securities (in shares)			15,529	17,657
Exercise Price Less Than Average Market Price Of Common Shares [Member] | Warrant [Member]
Antidilutive securities (in shares)			2,109	1,018
Exercise Price Greater Than Average Market Price Of Common Shares [Member]
Antidilutive securities (in shares)	2,741,480	1,448,008
Exercise Price Greater Than Average Market Price Of Common Shares [Member] | Employee Stock Option [Member]
Antidilutive securities (in shares)	1,390,428	235,845
Exercise Price Greater Than Average Market Price Of Common Shares [Member] | Warrant [Member]
Antidilutive securities (in shares)	1,351,052	1,212,163

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

+ Details

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