Note 8 - Bonds Payable and Interest (Tables)

6 Months Ended

Jun. 30, 2023

Notes Tables

Schedule of Long-Term Debt Instruments [Table Text Block]

	June 30, 2023			December 31, 2022
Bonds payable:
Series 2021 Bonds Principal	$	166,340		$	166,340
Premium on bonds		249			249
Bond proceeds		166,589			166,589
Debt issuance costs		(4,753	)		(4,753	)
Accumulated amortization of debt issuance costs and bond premium		480			374
Total Bonds payable, net	$	162,316		$	162,210

Interest Expense, Debt [Table Text Block]

	Three months ended						Six months ended
	June 30, 2023			June 30, 2022			June 30, 2023			June 30, 2022
Interest	$	1,817		$	1,735		$	3,552		$	3,470
Amortization of bond premium and debt issuance costs		53			76			106			153
Total interest incurred		1,870			1,811			3,658			3,623
Less: capitalized interest		(1,788	)		(1,811	)		(3,576	)		(3,623	)
Interest expense	$	82		$	-		$	82		$	-