Note G - Fair Value Measurements (Details Textual)	1 Months Ended
	Jan. 31, 2019
Fair Value Inputs, Discount Rate, Intercompany Transactions	38.50%
Minimum [Member] | Measurement Input, Discount Rate [Member]
Receivables, Measurement Input	0.34
Maximum [Member] | Measurement Input, Discount Rate [Member]
Receivables, Measurement Input	0.39