Note 13 - Long-term Incentive Plan (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Share-based Compensation Arrangements by Share-based Payment Award, Restricted Stock Units, Vested and Expected to Vest [Table Text Block]

			Weighted Average		Grant Date Total Fair
	Number of		Grant Date Fair		Value
Grant Date	Units		Value		(in thousands)
December 2017		15,306	$	4.85	$	74
December 2018		23,436	$	1.20	$	28
December 2019		7,500	$	1.07	$	8

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

			Weighted Average		Grant Date Total Fair
	Number of		Grant Date Fair		Value
Grant Date	Units		Value		(in thousands)
March 2017		323,339	$	7.15	$	2,312
March 2018		396,536	$	4.77	$	1,891
March 2019		524,997	$	1.14	$	598
June 2019		46,168	$	1.08	$	50

Share-based Payment Arrangement, Activity [Table Text Block]

	Number of		Grant Date Fair
	Units		Value
Nonvested, December 31, 2018		998,219	$	5.88
Granted		578,665		1.13
Vested		382,845		4.75
Forfeited		125,696		4.08
Nonvested, December 31, 2019		1,068,343	$	3.42