Note Q - Other (Details Textual)	Dec. 31, 2021 USD ($)
Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total	$ 7,615,000

Amount, after allowance for credit loss, of financing receivable, classified as noncurrent.

No definition available.

Name:	us-gaap_NotesAndLoansReceivableNetNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant