Note L - Litigation (Details Textual) - The Violations under the Fair Labor Standards Act and the Arkansas Minimum Wage [Member] - USD ($)	3 Months Ended
	Mar. 31, 2020	Feb. 18, 2020
Loss Contingency, Estimate of Possible Loss		$ 16,500,000
Litigation Settlement, Amount Awarded to Other Party	$ 421,000
Accrued Expenses and Other Liabilities [Member]
Loss Contingency Accrual, Ending Balance	$ 16,500,000