Note 11 - Leases (Tables)

9 Months Ended

Sep. 30, 2022

Notes Tables

Lease, Cost [Table Text Block]

	Nine Months Ended September 30,
	2022			2021
Lease expenses
Operating lease expenses	$	56,101		$	122,001
Short-term lease expenses		124,645			76,160
Total lease cost	$	180,746		$	198,161
Other information
Cash paid for the amounts included in the measurement of lease liabilities for operating leases:
Operating cash flows	$	56,890		$	163,707
Weighted-average remaining lease term (in years):
Operating leases		0.62			1.28
Weighted-average discount rate:
Operating leases		14	%		14	%