Note 17 - Subsequent Events	12 Months Ended
Dec. 31, 2021
Notes to Financial Statements
Subsequent Events [Text Block]	*Note 17.* Subsequent Events** On January 6, 2022, the Company repurchased 11,361 shares for $47,930 in a private transaction at the closing price on January 6, 2022 of $4.21 per share from Tom Jewell, the Company's Chief Financial Officer, to cover his share of taxes. On October 19, 2021, the Company entered into a lease amendment to the existing lease in San Antonio, Texas commencing at a date to be determined in 2022 and expiring on September 24, 2024 running concurrently with the existing lease. The incremental space lease is 6,628 square feet. The incremental annual rent during the lease term ranges from $135,874 to $145,816.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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