Debt obligations as of December 31, 2019 and March 31, 2020 consisted of the following (in thousands):


	December 31, 2019
			Unamortized Debt		Balance, Net of
	Principal Balance		Financing Costs		Financing Costs
7.5% Notes	$	50,000	$	17	$	49,983
NG Advantage debt		33,898		192		33,706
SG Facility		4,400		—		4,400
Other debt		796		—		796
Total debt		89,094		209		88,885
Less amounts due within one year		(56,097)		(84)		(56,013)
Total long-term debt	$	32,997	$	125	$	32,872


	March 31, 2020
			Unamortized Debt		Balance, Net of
	Principal Balance		Financing Costs		Financing Costs
7.5% Notes	$	50,000	$	8	$	49,992
NG Advantage debt		32,434		175		32,259
SG Facility		4,600		—		4,600
Other debt		737		—		737
Total debt		87,771		183		87,588
Less amounts due within one year		(56,104)		(74)		(56,030)
Total long-term debt	$	31,667	$	109	$	31,558