DEBT - Schedule of Outstanding Balances and Maturity Dates for Short Term and Long Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Jun. 24, 2016
Short-term
Capital lease obligations, current	$ 148	$ 142
Debt issuance costs, current	0	0
Total debt, current	3,981	3,975
Long-term
Long-term debt, noncurrent	113,083
Capital lease obligations, noncurrent	50	0
Total debt, noncurrent	$ 108,911	108,933
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Total debt, noncurrent
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total debt, current
BONDS AND NOTES PAYABLE -
Short-term
Short-term debt, current	$ 3,833	3,833
Long-term
Long-term debt, noncurrent	109,250	109,250
BONDS AND NOTES PAYABLE - | 4.38% Series A 2016, maturing June 2028
Short-term
Short-term debt, current	0	0
Long-term
Long-term debt, noncurrent	$ 28,750	28,750
Debt instrument, interest rate	4.38%
BONDS AND NOTES PAYABLE - | 4.58% Series B 2016, maturing June 2036
Short-term
Short-term debt, current	$ 3,833	3,833
Long-term
Long-term debt, noncurrent	$ 80,500	80,500
Debt instrument, interest rate	458.00%
Secured Debt
Long-term
Debt issuance costs, noncurrent	$ (504)	$ (516)
Debt instrument, interest rate			4.55%