Condensed Consolidated Balance Sheets (Parentheticals) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Trade accounts receivable allowance for doubtful accounts (in Dollars)	$ 410,000	$ 326,000
Common stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	12,000,000	12,000,000
Common stock, shares issued	9,481,799	9,481,799
Common stock, shares outstanding	9,481,799	9,481,799