For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Note 7 - Concentrations (Details Textual)	3 Months Ended		6 Months Ended
Note 7 - Concentrations (Details Textual)	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020
Number of Areas in Which Operations are Concentrated			1
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| U.S. Government [Member]
Concentration Risk, Percentage	91.00%	91.30%
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Four Government Customers [Member]
Concentration Risk, Percentage	91.00%
Number of Major Customers	4
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Three Government Customers [Member]
Concentration Risk, Percentage		73.20%
Number of Major Customers		3
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Commercial Customers [Member]
Number of Major Customers	0	0