Note 7 - Fair Value Measurements - Fair Value of Assets and Liabilities (Details) - USD ($)		Mar. 31, 2026	Dec. 31, 2025
Cash and money market accounts(1)	[1]	$ 6,812,637	$ 3,806,831
Bank debt(2)	[2]	8,702,266	9,099,107
Fair Value, Recurring [Member]
Cash and money market accounts(1)	[1]	6,812,637	3,806,831
Bank debt(2)	[2]	8,116,358	8,457,433
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and money market accounts(1)	[1]	6,812,637	3,806,831
Bank debt(2)	[2]	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and money market accounts(1)	[1]	0	0
Bank debt(2)	[2]	8,116,358	8,457,433
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and money market accounts(1)	[1]	0	0
Bank debt(2)	[2]	$ 0	$ 0

[1] Cash and cash equivalents are stated at nominal value, which equals fair value. A portion of our cash and cash equivalents is invested in money market accounts. The fair value of these investments is based on their closing published net asset value.

[2] Due to inflation and the changing interest rate environment, the carrying values of our fixed rate bank debt as of March 31, 2026 and December 31, 2025 differed from their fair market values. The amount outstanding under our bank debt facilities is measured at carrying value in our accompanying balance sheets.